e2e tests for the registry

Signed-off-by: Alvaro Saurin <alvaro.saurin@gmail.com>

tests/02-registry.sh

@@ -0,0 +1,88 @@
+#!/bin/bash
+
+CURR_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+[ -d "$CURR_DIR" ] || { echo "FATAL: no current dir (maybe running in zsh?)";  exit 1; }
+
+# shellcheck source=./common.sh
+source "$CURR_DIR/common.sh"
+
+#########################################################################################
+
+REGISTRY_NAME="registry.local"
+REGISTRY_PORT="5000"
+REGISTRY="$REGISTRY_NAME:$REGISTRY_PORT"
+TEST_IMAGE="nginx:latest"
+
+check_registry() {
+  check_url $REGISTRY/v2/_catalog
+}
+
+#########################################################################################
+
+info "Checking that $REGISTRY_NAME is resolvable"
+grep -q $REGISTRY_NAME /etc/hosts
+if [ $? -ne 0 ] ; then
+  [ "$CI" = "true" ] || abort "$REGISTRY_NAME is not in /etc/hosts: please add an entry manually."
+
+  info "Adding '127.0.0.1 $REGISTRY_NAME' to /etc/hosts"
+  echo "127.0.0.1 $REGISTRY_NAME"  | sudo tee -a /etc/hosts
+else
+  passed "... good: $REGISTRY_NAME is in /etc/hosts"
+fi
+
+info "Creating two clusters (with a registry)..."
+$EXE create --wait 60 --name "c1" --api-port 6443 --enable-registry || failed "could not create cluster c1"
+$EXE create --wait 60 --name "c2" --api-port 6444 --enable-registry || failed "could not create cluster c2"
+
+check_k3d_clusters "c1" "c2" || failed "error checking cluster"
+
+check_registry || abort "local registry not available at $REGISTRY"
+passed "Local registry running at $REGISTRY"
+
+info "Deleting c1 cluster: the registry should remain..."
+$EXE delete --name "c1" || failed "could not delete the cluster c1"
+check_registry || abort "local registry not available at $REGISTRY after removing c1"
+passed "The local registry is still running"
+
+info "Pulling a test image..."
+docker pull $TEST_IMAGE
+docker tag $TEST_IMAGE $REGISTRY/$TEST_IMAGE
+
+info "Pushing to $REGISTRY..."
+docker push $REGISTRY/$TEST_IMAGE
+
+info "Using the image in the registry in the first cluster..."
+cat <<EOF | kubectl apply --kubeconfig=$($EXE get-kubeconfig --name "c2") -f -
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-registry
+  labels:
+    app: test-registry
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: test-registry
+  template:
+    metadata:
+      labels:
+        app: test-registry
+    spec:
+      containers:
+      - name: test-registry
+        image: $REGISTRY/$TEST_IMAGE
+        ports:
+        - containerPort: 80
+EOF
+
+kubectl --kubeconfig=$($EXE get-kubeconfig --name "c2") wait --for=condition=available --timeout=600s deployment/test-registry
+[ $? -eq 0 ] || abort "deployment with local registry failed"
+passed "Local registry seems to be usable"
+
+info "Deleting c2 cluster: the registry should be removed now..."
+$EXE delete --name "c2" || failed "could not delete the cluster c2"
+check_registry && abort "local registry still running at $REGISTRY"
+passed "The local registry has been removed"
+
+exit 0