start translation k3d -> docker
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iwilltry42
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23
commands.md
23
commands.md
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# commands
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## create
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```
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k3d
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|- create
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| |- cluster [NAME ] [flags]
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| |- node [NAME ] [flags]
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|- delete
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| |- cluster [NAME ] [flags]
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| |- node [NAME ] [flags]
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|- get
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| |- cluster
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| |- node
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|- start
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| |- cluster
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| |- node
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|- stop
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| |- cluster
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| |- node
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```
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1
go.sum
1
go.sum
@ -50,6 +50,7 @@ github.com/docker/distribution v0.0.0-20190905152932-14b96e55d84c h1:6L6qod4JzOm
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github.com/docker/distribution v0.0.0-20190905152932-14b96e55d84c/go.mod h1:0+TTO4EOBfRPhZXAeF1Vu+W3hHZ8eLp8PgKVZlcvtFY=
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github.com/docker/docker v1.4.2-0.20190905191220-3b23f9033967 h1:hqs6DQFz659/085bXwClBRGefVf+kWCTsQR6wwkOMiU=
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github.com/docker/docker v1.4.2-0.20190905191220-3b23f9033967/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
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github.com/docker/docker v1.13.1 h1:IkZjBSIc8hBjLpqeAbeE5mca5mNgeatLHBy3GO78BWo=
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github.com/docker/go-connections v0.4.0 h1:El9xVISelRB7BuFusrZozjnkIM5YnzCViNKohAFqRJQ=
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github.com/docker/go-connections v0.4.0/go.mod h1:Gbd7IOopHjR8Iph03tsViu4nIes5XhDvyHbTtUxmeec=
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github.com/docker/go-events v0.0.0-20190806004212-e31b211e4f1c h1:+pKlWGMw7gf6bQ+oDZB4KHQFypsfjYlq/C4rfL7D3g8=
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44
pkg/runtimes/docker/translate.go
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44
pkg/runtimes/docker/translate.go
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/*
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Copyright © 2019 Thorsten Klein <iwilltry42@gmail.com>
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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 docker
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import (
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docker "github.com/docker/docker/api/types/container"
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"github.com/docker/go-connections/nat"
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k3d "github.com/rancher/k3d/pkg/types"
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)
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func TranslateNodeToContainer(node *k3d.Node) (docker.Config, error) {
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container := docker.Config{}
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container.Hostname = node.Name
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container.Image = node.Image
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//container.Ports = // TODO: translate from what we have to []docker.Port
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container.Labels = node.Labels
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container.ExposedPorts = nat.PortSet{} // TODO:
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container.Env = []string{} // TODO:
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container.Cmd = []string{} // TODO: dependent on role and extra args
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container.Volumes = map[string]struct{}{} // TODO:
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return container, nil
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}
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59
thoughts.md
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59
thoughts.md
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# Thoughts
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## commands
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### `create`
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```shell
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k3d
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|- create
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| |- cluster [NAME ] [flags]
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| |- node [NAME ] [flags]
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|- delete
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| |- cluster [NAME ] [flags]
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| |- node [NAME ] [flags]
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|- get
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| |- cluster
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| |- node
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|- start
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| |- cluster
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| |- node
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|- stop
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| |- cluster
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| |- node
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```
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## Overview
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- `cmd/`: everything around the CLI of k3 = human interface, printed output (e.g. list of clusters)
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- `pkg/`: everything else, can be used as a module from other Go projects
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- `cluster/`: everything around managing cluster components
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- `runtimes/`: translate k3d types (node, cluster, etc.) to container runtime specific types and manage them
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- `types/`: collection of types (structs) and constants used by k3d
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- `util/`: utilities, that could be used for everything, not directly related to the project
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## k3d <-> runtime
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k3d _should_ work with more than one runtime, if we can implement the Runtime interface for it.
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Here's how k3d types should translate to a runtime type:
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- `cluster` = set of _containers_ running in the same _network_, maybe mounting the same _volume(s)_
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- `node` = _container_ with _exposed ports_ and _volume mounts_
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### docker
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#### node -> container
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`container = "github.com/docker/docker/api/types/container"`
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`network = "github.com/docker/docker/api/types/network"`
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- Name -> container.Hostname = node.Name
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- Role -> container.Labels["role"] = node.Role
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- Image -> container.Image = node.Image
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- Volumes -> container.HostConfig.PortBindings
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- Env ->
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- Args ->
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- Ports ->
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- Restart ->
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- Labels -> container.Labels
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