new syntax for cluster creation and kubeconfig manipulation
This commit is contained in:
iwilltry42
parent
8278e8d20b
commit
08f7a47119
54
cmd/cluster/cluster.go
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54
cmd/cluster/cluster.go
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@ -0,0 +1,54 @@
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/*
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Copyright © 2020 The k3d Author(s)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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package cluster
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import (
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log "github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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)
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// NewCmdCluster returns a new cobra command
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func NewCmdCluster() *cobra.Command {
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// create new cobra command
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cmd := &cobra.Command{
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Use: "cluster",
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Short: "Manage cluster(s)",
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Long: `Manage cluster(s)`,
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Run: func(cmd *cobra.Command, args []string) {
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if err := cmd.Help(); err != nil {
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log.Errorln("Couldn't get help text")
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log.Fatalln(err)
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}
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},
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}
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// add subcommands
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cmd.AddCommand(NewCmdClusterCreate())
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cmd.AddCommand(NewCmdClusterDelete())
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cmd.AddCommand(NewCmdClusterList())
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// add flags
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// done
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return cmd
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}
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408
cmd/cluster/clusterCreate.go
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408
cmd/cluster/clusterCreate.go
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@ -0,0 +1,408 @@
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/*
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Copyright © 2020 The k3d Author(s)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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package cluster
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import (
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"fmt"
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"os"
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"runtime"
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"time"
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"github.com/spf13/cobra"
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cliutil "github.com/rancher/k3d/v3/cmd/util"
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"github.com/rancher/k3d/v3/pkg/cluster"
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k3dCluster "github.com/rancher/k3d/v3/pkg/cluster"
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"github.com/rancher/k3d/v3/pkg/runtimes"
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k3d "github.com/rancher/k3d/v3/pkg/types"
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"github.com/rancher/k3d/v3/version"
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log "github.com/sirupsen/logrus"
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)
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const clusterCreateDescription = `
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Create a new k3s cluster with containerized nodes (k3s in docker).
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Every cluster will consist of at least 2 containers:
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- 1 master node container (k3s)
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- 1 loadbalancer container as the entrypoint to the cluster (nginx)
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`
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// NewCmdClusterCreate returns a new cobra command
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func NewCmdClusterCreate() *cobra.Command {
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createClusterOpts := &k3d.CreateClusterOpts{}
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var updateKubeconfig, updateCurrentContext bool
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// create new command
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cmd := &cobra.Command{
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Use: "create NAME",
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Short: "Create a new cluster",
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Long: clusterCreateDescription,
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Args: cobra.RangeArgs(0, 1), // exactly one cluster name can be set (default: k3d.DefaultClusterName)
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Run: func(cmd *cobra.Command, args []string) {
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// parse args and flags
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cluster := parseCreateClusterCmd(cmd, args, createClusterOpts)
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// check if a cluster with that name exists already
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if _, err := k3dCluster.GetCluster(cmd.Context(), runtimes.SelectedRuntime, cluster); err == nil {
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log.Fatalf("Failed to create cluster '%s' because a cluster with that name already exists", cluster.Name)
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}
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// create cluster
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if updateKubeconfig || updateCurrentContext {
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log.Debugln("'--update-kubeconfig set: enabling wait-for-master")
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cluster.CreateClusterOpts.WaitForMaster = true
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}
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if err := k3dCluster.CreateCluster(cmd.Context(), runtimes.SelectedRuntime, cluster); err != nil {
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// rollback if creation failed
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log.Errorln(err)
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log.Errorln("Failed to create cluster >>> Rolling Back")
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if err := k3dCluster.DeleteCluster(cmd.Context(), runtimes.SelectedRuntime, cluster); err != nil {
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log.Errorln(err)
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log.Fatalln("Cluster creation FAILED, also FAILED to rollback changes!")
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}
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log.Fatalln("Cluster creation FAILED, all changes have been rolled back!")
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}
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log.Infof("Cluster '%s' created successfully!", cluster.Name)
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if updateKubeconfig || updateCurrentContext {
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log.Debugf("Updating default kubeconfig with a new context for cluster %s", cluster.Name)
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if _, err := k3dCluster.GetAndWriteKubeConfig(cmd.Context(), runtimes.SelectedRuntime, cluster, "", &k3dCluster.WriteKubeConfigOptions{UpdateExisting: true, OverwriteExisting: false, UpdateCurrentContext: updateCurrentContext}); err != nil {
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log.Fatalln(err)
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}
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}
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// print information on how to use the cluster with kubectl
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log.Infoln("You can now use it like this:")
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if updateKubeconfig && !updateCurrentContext {
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fmt.Printf("kubectl config use-context %s\n", fmt.Sprintf("%s-%s", k3d.DefaultObjectNamePrefix, cluster.Name))
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} else if !updateCurrentContext {
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if runtime.GOOS == "windows" {
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fmt.Printf("$env:KUBECONFIG=(%s get kubeconfig %s)\n", os.Args[0], cluster.Name)
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} else {
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fmt.Printf("export KUBECONFIG=$(%s get kubeconfig %s)\n", os.Args[0], cluster.Name)
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}
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}
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fmt.Println("kubectl cluster-info")
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},
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}
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/*********
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* Flags *
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*********/
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cmd.Flags().StringP("api-port", "a", "random", "Specify the Kubernetes API server port exposed on the LoadBalancer (Format: `--api-port [HOST:]HOSTPORT`)\n - Example: `k3d create -m 3 -a 0.0.0.0:6550`")
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cmd.Flags().IntP("masters", "m", 1, "Specify how many masters you want to create")
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cmd.Flags().IntP("workers", "w", 0, "Specify how many workers you want to create")
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cmd.Flags().StringP("image", "i", fmt.Sprintf("%s:%s", k3d.DefaultK3sImageRepo, version.GetK3sVersion(false)), "Specify k3s image that you want to use for the nodes")
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cmd.Flags().String("network", "", "Join an existing network")
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cmd.Flags().String("token", "", "Specify a cluster token. By default, we generate one.")
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cmd.Flags().StringArrayP("volume", "v", nil, "Mount volumes into the nodes (Format: `--volume [SOURCE:]DEST[@NODEFILTER[;NODEFILTER...]]`\n - Example: `k3d create -w 2 -v /my/path@worker[0,1] -v /tmp/test:/tmp/other@master[0]`")
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cmd.Flags().StringArrayP("port", "p", nil, "Map ports from the node containers to the host (Format: `[HOST:][HOSTPORT:]CONTAINERPORT[/PROTOCOL][@NODEFILTER]`)\n - Example: `k3d create -w 2 -p 8080:80@worker[0] -p 8081@worker[1]`")
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cmd.Flags().BoolVar(&createClusterOpts.WaitForMaster, "wait", true, "Wait for the master(s) to be ready before returning. Use '--timeout DURATION' to not wait forever.")
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cmd.Flags().DurationVar(&createClusterOpts.Timeout, "timeout", 0*time.Second, "Rollback changes if cluster couldn't be created in specified duration.")
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cmd.Flags().BoolVar(&updateKubeconfig, "update-kubeconfig", false, "Directly update the default kubeconfig with the new cluster's context")
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cmd.Flags().BoolVar(&updateCurrentContext, "switch", false, "Directly switch the default kubeconfig's current-context to the new cluster's context (implies --update-kubeconfig)")
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cmd.Flags().BoolVar(&createClusterOpts.DisableLoadBalancer, "no-lb", false, "Disable the creation of a LoadBalancer in front of the master nodes")
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/* Image Importing */
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cmd.Flags().BoolVar(&createClusterOpts.DisableImageVolume, "no-image-volume", false, "Disable the creation of a volume for importing images")
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/* Multi Master Configuration */
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// multi-master - datastore
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// TODO: implement multi-master setups with external data store
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// cmd.Flags().String("datastore-endpoint", "", "[WIP] Specify external datastore endpoint (e.g. for multi master clusters)")
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/*
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cmd.Flags().String("datastore-network", "", "Specify container network where we can find the datastore-endpoint (add a connection)")
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// TODO: set default paths and hint, that one should simply mount the files using --volume flag
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cmd.Flags().String("datastore-cafile", "", "Specify external datastore's TLS Certificate Authority (CA) file")
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cmd.Flags().String("datastore-certfile", "", "Specify external datastore's TLS certificate file'")
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cmd.Flags().String("datastore-keyfile", "", "Specify external datastore's TLS key file'")
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*/
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/* k3s */
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cmd.Flags().StringArrayVar(&createClusterOpts.K3sServerArgs, "k3s-server-arg", nil, "Additional args passed to the `k3s server` command on master nodes (new flag per arg)")
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cmd.Flags().StringArrayVar(&createClusterOpts.K3sAgentArgs, "k3s-agent-arg", nil, "Additional args passed to the `k3s agent` command on worker nodes (new flag per arg)")
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/* Subcommands */
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// done
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return cmd
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}
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// parseCreateClusterCmd parses the command input into variables required to create a cluster
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func parseCreateClusterCmd(cmd *cobra.Command, args []string, createClusterOpts *k3d.CreateClusterOpts) *k3d.Cluster {
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/********************************
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* Parse and validate arguments *
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********************************/
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clustername := k3d.DefaultClusterName
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if len(args) != 0 {
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clustername = args[0]
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}
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if err := cluster.CheckName(clustername); err != nil {
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log.Fatal(err)
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}
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/****************************
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* Parse and validate flags *
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****************************/
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// --image
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image, err := cmd.Flags().GetString("image")
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if err != nil {
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log.Errorln("No image specified")
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log.Fatalln(err)
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}
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if image == "latest" {
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image = version.GetK3sVersion(true)
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}
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// --masters
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masterCount, err := cmd.Flags().GetInt("masters")
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if err != nil {
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log.Fatalln(err)
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}
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// --workers
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workerCount, err := cmd.Flags().GetInt("workers")
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if err != nil {
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log.Fatalln(err)
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}
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// --network
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networkName, err := cmd.Flags().GetString("network")
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if err != nil {
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log.Fatalln(err)
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}
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network := k3d.ClusterNetwork{}
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if networkName != "" {
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network.Name = networkName
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network.External = true
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}
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if networkName == "host" && (masterCount+workerCount) > 1 {
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log.Fatalln("Can only run a single node in hostnetwork mode")
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}
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// --token
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token, err := cmd.Flags().GetString("token")
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if err != nil {
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log.Fatalln(err)
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}
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// --timeout
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if cmd.Flags().Changed("timeout") && createClusterOpts.Timeout <= 0*time.Second {
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log.Fatalln("--timeout DURATION must be >= 1s")
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}
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// --api-port
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apiPort, err := cmd.Flags().GetString("api-port")
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if err != nil {
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log.Fatalln(err)
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}
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// parse the port mapping
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exposeAPI, err := cliutil.ParseAPIPort(apiPort)
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if err != nil {
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log.Fatalln(err)
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}
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if exposeAPI.Host == "" {
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exposeAPI.Host = k3d.DefaultAPIHost
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}
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if exposeAPI.HostIP == "" {
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exposeAPI.HostIP = k3d.DefaultAPIHost
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}
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if networkName == "host" {
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// in hostNetwork mode, we're not going to map a hostport. Here it should always use 6443.
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// Note that hostNetwork mode is super inflexible and since we don't change the backend port (on the container), it will only be one hostmode cluster allowed.
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exposeAPI.Port = k3d.DefaultAPIPort
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}
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// --volume
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volumeFlags, err := cmd.Flags().GetStringArray("volume")
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if err != nil {
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log.Fatalln(err)
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}
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// volumeFilterMap will map volume mounts to applied node filters
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volumeFilterMap := make(map[string][]string, 1)
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for _, volumeFlag := range volumeFlags {
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// split node filter from the specified volume
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volume, filters, err := cliutil.SplitFiltersFromFlag(volumeFlag)
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if err != nil {
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log.Fatalln(err)
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}
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// validate the specified volume mount and return it in SRC:DEST format
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volume, err = cliutil.ValidateVolumeMount(runtimes.SelectedRuntime, volume)
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if err != nil {
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log.Fatalln(err)
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}
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// create new entry or append filter to existing entry
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if _, exists := volumeFilterMap[volume]; exists {
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volumeFilterMap[volume] = append(volumeFilterMap[volume], filters...)
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} else {
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volumeFilterMap[volume] = filters
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}
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}
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// --port
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portFlags, err := cmd.Flags().GetStringArray("port")
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if err != nil {
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log.Fatalln(err)
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}
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portFilterMap := make(map[string][]string, 1)
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for _, portFlag := range portFlags {
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// split node filter from the specified volume
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portmap, filters, err := cliutil.SplitFiltersFromFlag(portFlag)
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if err != nil {
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log.Fatalln(err)
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}
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if len(filters) > 1 {
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log.Fatalln("Can only apply a Portmap to one node")
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}
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// the same portmapping can't be applied to multiple nodes
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// validate the specified volume mount and return it in SRC:DEST format
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portmap, err = cliutil.ValidatePortMap(portmap)
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if err != nil {
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log.Fatalln(err)
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}
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// create new entry or append filter to existing entry
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if _, exists := portFilterMap[portmap]; exists {
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log.Fatalln("Same Portmapping can not be used for multiple nodes")
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} else {
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portFilterMap[portmap] = filters
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}
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}
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log.Debugf("PortFilterMap: %+v", portFilterMap)
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/********************
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* *
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* generate cluster *
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* *
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********************/
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cluster := &k3d.Cluster{
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Name: clustername,
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Network: network,
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Token: token,
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CreateClusterOpts: createClusterOpts,
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ExposeAPI: exposeAPI,
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}
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// generate list of nodes
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cluster.Nodes = []*k3d.Node{}
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// MasterLoadBalancer
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if !createClusterOpts.DisableLoadBalancer {
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cluster.MasterLoadBalancer = &k3d.Node{
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Role: k3d.LoadBalancerRole,
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}
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}
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/****************
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* Master Nodes *
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****************/
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for i := 0; i < masterCount; i++ {
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node := k3d.Node{
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Role: k3d.MasterRole,
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Image: image,
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Args: createClusterOpts.K3sServerArgs,
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MasterOpts: k3d.MasterOpts{},
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}
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// TODO: by default, we don't expose an API port: should we change that?
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// -> if we want to change that, simply add the exposeAPI struct here
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// first master node will be init node if we have more than one master specified but no external datastore
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if i == 0 && masterCount > 1 {
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node.MasterOpts.IsInit = true
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cluster.InitNode = &node
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}
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// append node to list
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cluster.Nodes = append(cluster.Nodes, &node)
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}
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/****************
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* Worker Nodes *
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****************/
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for i := 0; i < workerCount; i++ {
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node := k3d.Node{
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Role: k3d.WorkerRole,
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Image: image,
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Args: createClusterOpts.K3sAgentArgs,
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}
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cluster.Nodes = append(cluster.Nodes, &node)
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}
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// append volumes
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for volume, filters := range volumeFilterMap {
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nodes, err := cliutil.FilterNodes(cluster.Nodes, filters)
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if err != nil {
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log.Fatalln(err)
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}
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for _, node := range nodes {
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node.Volumes = append(node.Volumes, volume)
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}
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}
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// append ports
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nodeCount := masterCount + workerCount
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nodeList := cluster.Nodes
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if !createClusterOpts.DisableLoadBalancer {
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nodeCount++
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nodeList = append(nodeList, cluster.MasterLoadBalancer)
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}
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for portmap, filters := range portFilterMap {
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if len(filters) == 0 && (nodeCount) > 1 {
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log.Fatalf("Malformed portmapping '%s' lacks a node filter, but there is more than one node (including the loadbalancer, if there is any).", portmap)
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}
|
||||
nodes, err := cliutil.FilterNodes(nodeList, filters)
|
||||
if err != nil {
|
||||
log.Fatalln(err)
|
||||
}
|
||||
for _, node := range nodes {
|
||||
node.Ports = append(node.Ports, portmap)
|
||||
}
|
||||
}
|
||||
|
||||
/**********************
|
||||
* Utility Containers *
|
||||
**********************/
|
||||
// ...
|
||||
|
||||
return cluster
|
||||
}
|
||||
106
cmd/cluster/clusterDelete.go
Normal file
106
cmd/cluster/clusterDelete.go
Normal file
@ -0,0 +1,106 @@
|
||||
/*
|
||||
Copyright © 2020 The k3d Author(s)
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
THE SOFTWARE.
|
||||
*/
|
||||
package cluster
|
||||
|
||||
import (
|
||||
"github.com/rancher/k3d/v3/cmd/util"
|
||||
"github.com/rancher/k3d/v3/pkg/cluster"
|
||||
"github.com/rancher/k3d/v3/pkg/runtimes"
|
||||
k3d "github.com/rancher/k3d/v3/pkg/types"
|
||||
log "github.com/sirupsen/logrus"
|
||||
|
||||
"github.com/spf13/cobra"
|
||||
)
|
||||
|
||||
// NewCmdClusterDelete returns a new cobra command
|
||||
func NewCmdClusterDelete() *cobra.Command {
|
||||
|
||||
// create new cobra command
|
||||
cmd := &cobra.Command{
|
||||
Use: "delete (NAME | --all)",
|
||||
Aliases: []string{"del", "rm"},
|
||||
Short: "Delete cluster(s).",
|
||||
Long: `Delete cluster(s).`,
|
||||
Args: cobra.MinimumNArgs(0), // 0 or n arguments; 0 only if --all is set
|
||||
ValidArgsFunction: util.ValidArgsAvailableClusters,
|
||||
Run: func(cmd *cobra.Command, args []string) {
|
||||
clusters := parseDeleteClusterCmd(cmd, args)
|
||||
|
||||
if len(clusters) == 0 {
|
||||
log.Infoln("No clusters found")
|
||||
} else {
|
||||
for _, c := range clusters {
|
||||
if err := cluster.DeleteCluster(cmd.Context(), runtimes.SelectedRuntime, c); err != nil {
|
||||
log.Fatalln(err)
|
||||
}
|
||||
log.Infoln("Removing cluster details from default kubeconfig")
|
||||
if err := cluster.RemoveClusterFromDefaultKubeConfig(cmd.Context(), c); err != nil {
|
||||
log.Warnln("Failed to remove cluster details from default kubeconfig")
|
||||
log.Warnln(err)
|
||||
}
|
||||
|
||||
log.Infof("Successfully deleted cluster %s!", c.Name)
|
||||
}
|
||||
}
|
||||
|
||||
},
|
||||
}
|
||||
|
||||
// add subcommands
|
||||
|
||||
// add flags
|
||||
cmd.Flags().BoolP("all", "a", false, "Delete all existing clusters")
|
||||
|
||||
// done
|
||||
return cmd
|
||||
}
|
||||
|
||||
// parseDeleteClusterCmd parses the command input into variables required to delete clusters
|
||||
func parseDeleteClusterCmd(cmd *cobra.Command, args []string) []*k3d.Cluster {
|
||||
|
||||
// --all
|
||||
var clusters []*k3d.Cluster
|
||||
|
||||
if all, err := cmd.Flags().GetBool("all"); err != nil {
|
||||
log.Fatalln(err)
|
||||
} else if all {
|
||||
clusters, err = cluster.GetClusters(cmd.Context(), runtimes.SelectedRuntime)
|
||||
if err != nil {
|
||||
log.Fatalln(err)
|
||||
}
|
||||
return clusters
|
||||
}
|
||||
|
||||
if len(args) < 1 {
|
||||
log.Fatalln("Expecting at least one cluster name if `--all` is not set")
|
||||
}
|
||||
|
||||
for _, name := range args {
|
||||
cluster, err := cluster.GetCluster(cmd.Context(), runtimes.SelectedRuntime, &k3d.Cluster{Name: name})
|
||||
if err != nil {
|
||||
log.Fatalln(err)
|
||||
}
|
||||
clusters = append(clusters, cluster)
|
||||
}
|
||||
|
||||
return clusters
|
||||
}
|
||||
128
cmd/cluster/clusterList.go
Normal file
128
cmd/cluster/clusterList.go
Normal file
@ -0,0 +1,128 @@
|
||||
/*
|
||||
Copyright © 2020 The k3d Author(s)
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
THE SOFTWARE.
|
||||
*/
|
||||
package cluster
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"os"
|
||||
"strings"
|
||||
|
||||
"github.com/rancher/k3d/v3/cmd/util"
|
||||
k3cluster "github.com/rancher/k3d/v3/pkg/cluster"
|
||||
"github.com/rancher/k3d/v3/pkg/runtimes"
|
||||
k3d "github.com/rancher/k3d/v3/pkg/types"
|
||||
"github.com/spf13/cobra"
|
||||
|
||||
log "github.com/sirupsen/logrus"
|
||||
|
||||
"github.com/liggitt/tabwriter"
|
||||
)
|
||||
|
||||
// TODO : deal with --all flag to manage differentiate started cluster and stopped cluster like `docker ps` and `docker ps -a`
|
||||
type clusterFlags struct {
|
||||
noHeader bool
|
||||
token bool
|
||||
}
|
||||
|
||||
// NewCmdClusterList returns a new cobra command
|
||||
func NewCmdClusterList() *cobra.Command {
|
||||
|
||||
clusterFlags := clusterFlags{}
|
||||
|
||||
// create new command
|
||||
cmd := &cobra.Command{
|
||||
Use: "list [NAME [NAME...]]",
|
||||
Aliases: []string{"ls", "get"},
|
||||
Short: "List cluster(s)",
|
||||
Long: `List cluster(s).`,
|
||||
Run: func(cmd *cobra.Command, args []string) {
|
||||
clusters := buildClusterList(cmd.Context(), args)
|
||||
PrintClusters(clusters, clusterFlags)
|
||||
},
|
||||
ValidArgsFunction: util.ValidArgsAvailableClusters,
|
||||
}
|
||||
|
||||
// add flags
|
||||
cmd.Flags().BoolVar(&clusterFlags.noHeader, "no-headers", false, "Disable headers")
|
||||
cmd.Flags().BoolVar(&clusterFlags.token, "token", false, "Print k3s cluster token")
|
||||
|
||||
// add subcommands
|
||||
|
||||
// done
|
||||
return cmd
|
||||
}
|
||||
|
||||
func buildClusterList(ctx context.Context, args []string) []*k3d.Cluster {
|
||||
var clusters []*k3d.Cluster
|
||||
var err error
|
||||
|
||||
if len(args) == 0 {
|
||||
// cluster name not specified : get all clusters
|
||||
clusters, err = k3cluster.GetClusters(ctx, runtimes.SelectedRuntime)
|
||||
if err != nil {
|
||||
log.Fatalln(err)
|
||||
}
|
||||
} else {
|
||||
for _, clusterName := range args {
|
||||
// cluster name specified : get specific cluster
|
||||
retrievedCluster, err := k3cluster.GetCluster(ctx, runtimes.SelectedRuntime, &k3d.Cluster{Name: clusterName})
|
||||
if err != nil {
|
||||
log.Fatalln(err)
|
||||
}
|
||||
clusters = append(clusters, retrievedCluster)
|
||||
}
|
||||
}
|
||||
|
||||
return clusters
|
||||
}
|
||||
|
||||
// PrintPrintClusters : display list of cluster
|
||||
func PrintClusters(clusters []*k3d.Cluster, flags clusterFlags) {
|
||||
|
||||
tabwriter := tabwriter.NewWriter(os.Stdout, 6, 4, 3, ' ', tabwriter.RememberWidths)
|
||||
defer tabwriter.Flush()
|
||||
|
||||
if !flags.noHeader {
|
||||
headers := []string{"NAME", "MASTERS", "WORKERS"} // TODO: getCluster: add status column
|
||||
if flags.token {
|
||||
headers = append(headers, "TOKEN")
|
||||
}
|
||||
_, err := fmt.Fprintf(tabwriter, "%s\n", strings.Join(headers, "\t"))
|
||||
if err != nil {
|
||||
log.Fatalln("Failed to print headers")
|
||||
}
|
||||
}
|
||||
|
||||
k3cluster.SortClusters(clusters)
|
||||
|
||||
for _, cluster := range clusters {
|
||||
masterCount := cluster.MasterCount()
|
||||
workerCount := cluster.WorkerCount()
|
||||
|
||||
if flags.token {
|
||||
fmt.Fprintf(tabwriter, "%s\t%d\t%d\t%s\n", cluster.Name, masterCount, workerCount, cluster.Token)
|
||||
} else {
|
||||
fmt.Fprintf(tabwriter, "%s\t%d\t%d\n", cluster.Name, masterCount, workerCount)
|
||||
}
|
||||
}
|
||||
}
|
||||
53
cmd/kubeconfig/kubeconfig.go
Normal file
53
cmd/kubeconfig/kubeconfig.go
Normal file
@ -0,0 +1,53 @@
|
||||
/*
|
||||
Copyright © 2020 The k3d Author(s)
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
THE SOFTWARE.
|
||||
*/
|
||||
package kubeconfig
|
||||
|
||||
import (
|
||||
log "github.com/sirupsen/logrus"
|
||||
"github.com/spf13/cobra"
|
||||
)
|
||||
|
||||
// NewCmdKubeconfig returns a new cobra command
|
||||
func NewCmdKubeconfig() *cobra.Command {
|
||||
|
||||
// create new cobra command
|
||||
cmd := &cobra.Command{
|
||||
Use: "kubeconfig",
|
||||
Short: "Manage kubeconfig(s)",
|
||||
Long: `Manage kubeconfig(s)`,
|
||||
Run: func(cmd *cobra.Command, args []string) {
|
||||
if err := cmd.Help(); err != nil {
|
||||
log.Errorln("Couldn't get help text")
|
||||
log.Fatalln(err)
|
||||
}
|
||||
},
|
||||
}
|
||||
|
||||
// add subcommands
|
||||
cmd.AddCommand(NewCmdKubeconfigGet())
|
||||
cmd.AddCommand(NewCmdKubeconfigMerge())
|
||||
|
||||
// add flags
|
||||
|
||||
// done
|
||||
return cmd
|
||||
}
|
||||
107
cmd/kubeconfig/kubeconfigGet.go
Normal file
107
cmd/kubeconfig/kubeconfigGet.go
Normal file
@ -0,0 +1,107 @@
|
||||
/*
|
||||
Copyright © 2020 The k3d Author(s)
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
THE SOFTWARE.
|
||||
*/
|
||||
package kubeconfig
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
|
||||
"github.com/rancher/k3d/v3/cmd/util"
|
||||
"github.com/rancher/k3d/v3/pkg/cluster"
|
||||
"github.com/rancher/k3d/v3/pkg/runtimes"
|
||||
k3d "github.com/rancher/k3d/v3/pkg/types"
|
||||
"github.com/spf13/cobra"
|
||||
|
||||
log "github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
type getKubeconfigFlags struct {
|
||||
all bool
|
||||
}
|
||||
|
||||
// NewCmdKubeconfigGet returns a new cobra command
|
||||
func NewCmdKubeconfigGet() *cobra.Command {
|
||||
|
||||
writeKubeConfigOptions := cluster.WriteKubeConfigOptions{
|
||||
UpdateExisting: true,
|
||||
UpdateCurrentContext: true,
|
||||
OverwriteExisting: true,
|
||||
}
|
||||
|
||||
getKubeconfigFlags := getKubeconfigFlags{}
|
||||
|
||||
// create new command
|
||||
cmd := &cobra.Command{
|
||||
Use: "get [CLUSTER [CLUSTER [...]] | --all]",
|
||||
Short: "Get kubeconfig from cluster(s).",
|
||||
Long: `Get kubeconfig from cluster(s).`,
|
||||
ValidArgsFunction: util.ValidArgsAvailableClusters,
|
||||
Args: func(cmd *cobra.Command, args []string) error {
|
||||
if (len(args) < 1 && !getKubeconfigFlags.all) || (len(args) > 0 && getKubeconfigFlags.all) {
|
||||
return fmt.Errorf("Need to specify one or more cluster names *or* set `--all` flag")
|
||||
}
|
||||
return nil
|
||||
},
|
||||
Run: func(cmd *cobra.Command, args []string) {
|
||||
var clusters []*k3d.Cluster
|
||||
var err error
|
||||
|
||||
// generate list of clusters
|
||||
if getKubeconfigFlags.all {
|
||||
clusters, err = cluster.GetClusters(cmd.Context(), runtimes.SelectedRuntime)
|
||||
if err != nil {
|
||||
log.Fatalln(err)
|
||||
}
|
||||
} else {
|
||||
for _, clusterName := range args {
|
||||
retrievedCluster, err := cluster.GetCluster(cmd.Context(), runtimes.SelectedRuntime, &k3d.Cluster{Name: clusterName})
|
||||
if err != nil {
|
||||
log.Fatalln(err)
|
||||
}
|
||||
clusters = append(clusters, retrievedCluster)
|
||||
}
|
||||
}
|
||||
|
||||
// get kubeconfigs from all clusters
|
||||
errorGettingKubeconfig := false
|
||||
for _, c := range clusters {
|
||||
log.Debugf("Getting kubeconfig for cluster '%s'", c.Name)
|
||||
fmt.Println("---") // YAML document separator
|
||||
if _, err := cluster.GetAndWriteKubeConfig(cmd.Context(), runtimes.SelectedRuntime, c, "-", &writeKubeConfigOptions); err != nil {
|
||||
log.Errorln(err)
|
||||
errorGettingKubeconfig = true
|
||||
}
|
||||
}
|
||||
|
||||
// return with non-zero exit code, if there was an error for one of the clusters
|
||||
if errorGettingKubeconfig {
|
||||
os.Exit(1)
|
||||
}
|
||||
},
|
||||
}
|
||||
|
||||
// add flags
|
||||
cmd.Flags().BoolVarP(&getKubeconfigFlags.all, "all", "a", false, "Get kubeconfigs from all existing clusters")
|
||||
|
||||
// done
|
||||
return cmd
|
||||
}
|
||||
116
cmd/kubeconfig/kubeconfigMerge.go
Normal file
116
cmd/kubeconfig/kubeconfigMerge.go
Normal file
@ -0,0 +1,116 @@
|
||||
/*
|
||||
Copyright © 2020 The k3d Author(s)
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
THE SOFTWARE.
|
||||
*/
|
||||
package kubeconfig
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
|
||||
"github.com/rancher/k3d/v3/cmd/util"
|
||||
"github.com/rancher/k3d/v3/pkg/cluster"
|
||||
"github.com/rancher/k3d/v3/pkg/runtimes"
|
||||
k3d "github.com/rancher/k3d/v3/pkg/types"
|
||||
"github.com/spf13/cobra"
|
||||
"k8s.io/client-go/tools/clientcmd"
|
||||
|
||||
log "github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
type mergeKubeconfigFlags struct {
|
||||
all bool
|
||||
output string
|
||||
}
|
||||
|
||||
// NewCmdKubeconfigMerge returns a new cobra command
|
||||
func NewCmdKubeconfigMerge() *cobra.Command {
|
||||
|
||||
writeKubeConfigOptions := cluster.WriteKubeConfigOptions{}
|
||||
|
||||
mergeKubeconfigFlags := mergeKubeconfigFlags{}
|
||||
|
||||
// create new command
|
||||
cmd := &cobra.Command{
|
||||
Use: "merge [CLUSTER [CLUSTER [...]] | --all]",
|
||||
Long: `Merge kubeconfig from cluster(s) into existing kubeconfig/file.`,
|
||||
Short: "Merge kubeconfig from cluster(s) into existing kubeconfig/file.",
|
||||
ValidArgsFunction: util.ValidArgsAvailableClusters,
|
||||
Args: func(cmd *cobra.Command, args []string) error {
|
||||
if (len(args) < 1 && !mergeKubeconfigFlags.all) || (len(args) > 0 && mergeKubeconfigFlags.all) {
|
||||
return fmt.Errorf("Need to specify one or more cluster names *or* set `--all` flag")
|
||||
}
|
||||
return nil
|
||||
},
|
||||
Run: func(cmd *cobra.Command, args []string) {
|
||||
var clusters []*k3d.Cluster
|
||||
var err error
|
||||
|
||||
// generate list of clusters
|
||||
if mergeKubeconfigFlags.all {
|
||||
clusters, err = cluster.GetClusters(cmd.Context(), runtimes.SelectedRuntime)
|
||||
if err != nil {
|
||||
log.Fatalln(err)
|
||||
}
|
||||
} else {
|
||||
for _, clusterName := range args {
|
||||
retrievedCluster, err := cluster.GetCluster(cmd.Context(), runtimes.SelectedRuntime, &k3d.Cluster{Name: clusterName})
|
||||
if err != nil {
|
||||
log.Fatalln(err)
|
||||
}
|
||||
clusters = append(clusters, retrievedCluster)
|
||||
}
|
||||
}
|
||||
|
||||
// get kubeconfigs from all clusters
|
||||
errorGettingKubeconfig := false
|
||||
for _, c := range clusters {
|
||||
log.Debugf("Getting kubeconfig for cluster '%s'", c.Name)
|
||||
if mergeKubeconfigFlags.output, err = cluster.GetAndWriteKubeConfig(cmd.Context(), runtimes.SelectedRuntime, c, mergeKubeconfigFlags.output, &writeKubeConfigOptions); err != nil {
|
||||
log.Errorln(err)
|
||||
errorGettingKubeconfig = true
|
||||
}
|
||||
}
|
||||
|
||||
// only print kubeconfig file path if output is not stdout ("-")
|
||||
if mergeKubeconfigFlags.output != "-" {
|
||||
fmt.Println(mergeKubeconfigFlags.output)
|
||||
}
|
||||
|
||||
// return with non-zero exit code, if there was an error for one of the clusters
|
||||
if errorGettingKubeconfig {
|
||||
os.Exit(1)
|
||||
}
|
||||
},
|
||||
}
|
||||
|
||||
// add flags
|
||||
cmd.Flags().StringVarP(&mergeKubeconfigFlags.output, "output", "o", "", fmt.Sprintf("Define output [ - | FILE ] (default from $KUBECONFIG or %s", clientcmd.RecommendedHomeFile))
|
||||
if err := cmd.MarkFlagFilename("output"); err != nil {
|
||||
log.Fatalln("Failed to mark flag --output as filename")
|
||||
}
|
||||
cmd.Flags().BoolVarP(&writeKubeConfigOptions.UpdateExisting, "update", "u", true, "Update conflicting fields in existing KubeConfig")
|
||||
cmd.Flags().BoolVarP(&writeKubeConfigOptions.UpdateCurrentContext, "switch", "s", false, "Switch to new context")
|
||||
cmd.Flags().BoolVar(&writeKubeConfigOptions.OverwriteExisting, "overwrite", false, "[Careful!] Overwrite existing file, ignoring its contents")
|
||||
cmd.Flags().BoolVarP(&mergeKubeconfigFlags.all, "all", "a", false, "Get kubeconfigs from all existing clusters")
|
||||
|
||||
// done
|
||||
return cmd
|
||||
}
|
||||
@ -30,9 +30,11 @@ import (
|
||||
|
||||
"github.com/spf13/cobra"
|
||||
|
||||
"github.com/rancher/k3d/v3/cmd/cluster"
|
||||
"github.com/rancher/k3d/v3/cmd/create"
|
||||
"github.com/rancher/k3d/v3/cmd/delete"
|
||||
"github.com/rancher/k3d/v3/cmd/get"
|
||||
"github.com/rancher/k3d/v3/cmd/kubeconfig"
|
||||
"github.com/rancher/k3d/v3/cmd/load"
|
||||
"github.com/rancher/k3d/v3/cmd/start"
|
||||
"github.com/rancher/k3d/v3/cmd/stop"
|
||||
@ -99,6 +101,11 @@ func init() {
|
||||
rootCmd.AddCommand(start.NewCmdStart())
|
||||
rootCmd.AddCommand(load.NewCmdLoad())
|
||||
|
||||
if os.Getenv("K3D_NEW_SYNTAX") == "1" {
|
||||
rootCmd.AddCommand(cluster.NewCmdCluster())
|
||||
rootCmd.AddCommand(kubeconfig.NewCmdKubeconfig())
|
||||
}
|
||||
|
||||
rootCmd.AddCommand(&cobra.Command{
|
||||
Use: "version",
|
||||
Short: "Print k3d version",
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user