major: Support for vCluster 0.21.0 and up. Dropping support for previous versions.

.e2e/chainsaw-tests.yaml

@@ -21,7 +21,7 @@ spec:
                 values:
                 - my-virtual-namespace
               matchLabels:
-                vcluster.loft.sh/label-vcluster-x-a172cedcae: example-app
+                app: example-app
 ---
 apiVersion: chainsaw.kyverno.io/v1alpha1
 kind: Test
@@ -47,7 +47,7 @@ spec:
                 values:
                 - default
               matchLabels:
-                vcluster.loft.sh/label-vcluster-x-a172cedcae: example-app
+                app: example-app
 ---
 apiVersion: chainsaw.kyverno.io/v1alpha1
 kind: Test
@@ -72,7 +72,7 @@ spec:
                 values:
                 - my-virtual-namespace
               matchLabels:
-                vcluster.loft.sh/label-vcluster-x-a172cedcae: example-app
+                app: example-app
 ---
 apiVersion: chainsaw.kyverno.io/v1alpha1
 kind: Test
@@ -97,4 +97,4 @@ spec:
                 values:
                 - default
               matchLabels:
-                vcluster.loft.sh/label-vcluster-x-a172cedcae: example-app
+                app: example-app

v2/.e2e/scripts/init.sh → .e2e/scripts/init.sh

@@ -4,7 +4,7 @@
 PLUGIN_IMAGE=$1
 MYDIR=$(dirname $0)
 ROOT_DIR=$MYDIR/../../
-RESOURCES_FILE=$MYDIR/../../../.e2e/vcluster-resources.yaml
+RESOURCES_FILE=$MYDIR/../../.e2e/vcluster-resources.yaml
 
 kubectl apply -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/v0.70.0/example/prometheus-operator-crd-full/monitoring.coreos.com_podmonitors.yaml
 kubectl apply -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/v0.70.0/example/prometheus-operator-crd-full/monitoring.coreos.com_servicemonitors.yaml

Dockerfile

@@ -0,0 +1,22 @@
+# syntax=docker.io/docker/dockerfile-upstream:1.14.1-labs
+
+# Build the manager binary
+FROM golang:1.23.2 AS builder
+WORKDIR /vcluster
+
+# Copy the Go Modules manifests
+COPY go.mod go.sum /vcluster/
+
+# Install dependencies
+RUN go mod download
+
+# Copy the sources
+COPY --parents pkg main.go /vcluster/
+
+# Build plugin
+RUN CGO_ENABLED=0 go build -o /plugin main.go
+
+# we use alpine for easier debugging
+FROM alpine
+WORKDIR /plugin
+COPY --from=builder /plugin .

README.md

@@ -6,9 +6,82 @@ This repository contains a [vCluster plugin](https://www.vcluster.com/docs/v0.19
 
 Currently only the very basic functionality is implemented so the plugin only supports syncing of `PodMonitor` and `ServiceMonitor` resources. This is to allow scraping of metrics from workloads running on virtual clusters from a signle Prometheus or Open Telemetry collector on the host (with [target allocator](https://github.com/open-telemetry/opentelemetry-operator/blob/main/cmd/otel-allocator/README.md) that supports Prometheus operator CRDs).
 
-The repository contains 2 versions of the plugin, each version is compatible with different versions of vCluster, but both versions provide the same functionality.
-This compatibility is required as Syncer arhitecture was overhauled by loft.sh in version 0.20.0 and plugin-sdk changed accordingly.
+This plugin is compatibe with vCluster version `0.21.0` and above, tested on `v0.23.0`, which was latest at the time of writing this plugin.
 
-`v1` - Compatible with older versions of vCluster - latest confirmed & tested version is `0.16.4`
+# Development
 
-`v2` - Compatibe with vCluster version `0.20.0-beta.9` which was the latest version at the time of writing.
+For more information how to develop plugins in vcluster, please refer to the [official vcluster docs](https://www.vcluster.com/docs/plugins/overview).
+
+## Using the Plugin in vcluster
+
+To use the plugin, create a new vcluster with the `plugin.yaml`:
+
+```
+# Deploy Prometheus operator on host cluster with Helm:
+For more info see -https://artifacthub.io/packages/helm/prometheus-community/kube-prometheus-stack?modal=install
+
+# Create vcluster with plugin
+vcluster create my-vcluster -n my-vcluster -f https://raw.githubusercontent.com/codefresh-contrib/vcluster-prometheus-operator-plugin/main/v2/plugin.yaml
+```
+
+This will create a new vcluster with the plugin installed. Then test the plugin with:
+
+```
+# Apply example ServicerMonitor
+vcluster connect my-vcluster -n my-vcluster -- kubectl apply -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/main/example/user-guides/getting-started/example-app-service-monitor.yaml
+
+# Check if car got correctly synced
+kubectl get servicemonitor -n my-vcluster
+```
+
+## Building the Plugin
+To just build the plugin image and push it to the registry, run:
+```
+# Build
+docker build . -t my-repo/my-plugin:0.0.1
+
+# Push
+docker push my-repo/my-plugin:0.0.1
+```
+
+Then exchange the image in the `plugin.yaml`
+
+## Development Process
+
+General vcluster plugin project structure:
+```
+.
+├── go.mod              # Go module definition
+├── go.sum
+├── devspace.yaml       # Development environment definition
+├── devspace_start.sh   # Development entrypoint script
+├── Dockerfile          # Production Dockerfile
+├── main.go             # Go Entrypoint
+├── plugin.yaml         # Plugin Helm Values
+├── syncers/            # Plugin Syncers
+└── manifests/          # Additional plugin resources
+```
+
+Before starting to develop, make sure you have installed the following tools on your computer:
+- [docker](https://docs.docker.com/)
+- [kubectl](https://kubernetes.io/docs/tasks/tools/) with a valid kube context configured
+- [helm](https://helm.sh/docs/intro/install/), which is used to deploy vcluster and the plugin
+- [vcluster CLI](https://www.vcluster.com/docs/getting-started/setup) v0.20.0 or higher
+- [DevSpace](https://devspace.sh/cli/docs/quickstart), which is used to spin up a development environment
+
+After successfully setting up the tools, start the development environment with:
+```
+devspace dev -n vcluster
+```
+
+After a while a terminal should show up with additional instructions. Enter the following command to start the plugin:
+```
+go build -mod vendor -o plugin main.go && /vcluster/syncer start
+```
+
+You can now change a file locally in your IDE and then restart the command in the terminal to apply the changes to the plugin.
+
+Delete the development environment with:
+```
+devspace purge -n vcluster
+```

codefresh.yaml

@@ -43,95 +43,59 @@ steps:
         on:
         - success
 
-  build_v1:
-    title: "Build v1"
-    type: build
-    stage: "build"
-    working_directory: '${{clone}}/v1'
-    build_arguments:
-    - BUILDKIT_INLINE_CACHE=1
-    image_name: "${{CF_REPO_NAME}}"
-    tag: "v1-${{IMAGE_TAG}}"
-    registry: "ghcr-codefresh-contrib"
-    platform: 'linux/amd64,linux/arm64'
-    buildx:
-      builder:
-        driver_opts: "image=moby/buildkit:v0.14.1"
-    cache_from:
-    - ghcr.io/${{CF_REPO_OWNER}}/${{CF_REPO_NAME}}:v1-${{IMAGE_TAG}}
-    - ghcr.io/${{CF_REPO_OWNER}}/${{CF_REPO_NAME}}:v1-main
-    when:
-      steps:
-      - name: clone
-        on:
-        - success
-
-  build_v2:
-      title: "Build v2"
+  build:
+      title: "Build image"
       type: build
       stage: "build"
       build_arguments:
       - BUILDKIT_INLINE_CACHE=1
-      working_directory: '${{clone}}/v2'
+      working_directory: '${{clone}}'
       image_name: "${{CF_REPO_NAME}}"
-      tag: "v2-${{IMAGE_TAG}}"
+      tag: "${{IMAGE_TAG}}"
       registry: "ghcr-codefresh-contrib"
       platform: 'linux/amd64,linux/arm64'
       buildx:
         builder:
           driver_opts: "image=moby/buildkit:v0.14.1"
       cache_from:
-      - ghcr.io/${{CF_REPO_OWNER}}/${{CF_REPO_NAME}}:v2-${{IMAGE_TAG}}
-      - ghcr.io/${{CF_REPO_OWNER}}/${{CF_REPO_NAME}}:v2-main
+      - ghcr.io/${{CF_REPO_OWNER}}/${{CF_REPO_NAME}}:${{IMAGE_TAG}}
+      - ghcr.io/${{CF_REPO_OWNER}}/${{CF_REPO_NAME}}:main
       when:
         steps:
         - name: clone
           on:
           - success
-        - name: build_v1
-          on:
-          - success
 
-  create_clusters:
+  create_cluster:
       title: 'Create k3d clusters'
       stage: test
       type: freestyle
       image: 'ghcr.io/k3d-io/k3d:5.5.2-dind'
       commands:
       - export NETWORK=$(docker network ls | grep bridge | tail -1 | awk '{print $2}')
-      - export FULL_CLUSTER_NAME_V1="k3d-test-prom-vcluster-plugin-v1"
-      - export FULL_CLUSTER_NAME_V2="k3d-test-prom-vcluster-plugin-v2"
+      - export FULL_CLUSTER_NAME="k3d-test-prom-vcluster-plugin"
       - export CLUSTER_IMAGE="rancher/k3s:v1.24.4-k3s1"
-      - k3d cluster create $FULL_CLUSTER_NAME_V1 --network $NETWORK -i $CLUSTER_IMAGE --no-lb
-      - k3d cluster create $FULL_CLUSTER_NAME_V2 --network $NETWORK -i $CLUSTER_IMAGE --no-lb
-      - export CLUSTER_IP_V1=$(docker inspect k3d-$FULL_CLUSTER_NAME_V1-server-0 | jq -r '.[0].NetworkSettings.IPAddress')
-      - export CLUSTER_IP_V2=$(docker inspect k3d-$FULL_CLUSTER_NAME_V2-server-0 | jq -r '.[0].NetworkSettings.IPAddress')
-      - yq e -i '(.clusters[] | select(.name=="k3d-"+env(FULL_CLUSTER_NAME_V1)) | .cluster.server) = "https://"+env(CLUSTER_IP_V1)+":6443"' $KUBECONFIG
-      - yq e -i '(.clusters[] | select(.name=="k3d-"+env(FULL_CLUSTER_NAME_V2)) | .cluster.server) = "https://"+env(CLUSTER_IP_V2)+":6443"' $KUBECONFIG
-      - export V1_KUBE_CONTEXT=k3d-$FULL_CLUSTER_NAME_V1
-      - export V2_KUBE_CONTEXT=k3d-$FULL_CLUSTER_NAME_V2
-      - cf_export FULL_CLUSTER_NAME_V1 V1_KUBE_CONTEXT FULL_CLUSTER_NAME_V2 V2_KUBE_CONTEXT
+      - k3d cluster create $FULL_CLUSTER_NAME --network $NETWORK -i $CLUSTER_IMAGE --no-lb
+      - export CLUSTER_IP=$(docker inspect k3d-$FULL_CLUSTER_NAME-server-0 | jq -r '.[0].NetworkSettings.IPAddress')
+      - yq e -i '(.clusters[] | select(.name=="k3d-"+env(FULL_CLUSTER_NAME)) | .cluster.server) = "https://"+env(CLUSTER_IP)+":6443"' $KUBECONFIG
+      - export KUBE_CONTEXT=k3d-$FULL_CLUSTER_NAME
+      - cf_export FULL_CLUSTER_NAME KUBE_CONTEXT
 
   init_test_envs:
       stage: test
       title: 'Init test environments'
       image: "dtzar/helm-kubectl:3.15"
       working_directory: '${{clone}}'
       commands:
-      - curl -L -o vcluster "https://github.com/loft-sh/vcluster/releases/download/v0.20.0-beta.11/vcluster-linux-amd64" && chmod +x ./vcluster && mv ./vcluster /usr/local/bin/vcluster
-      - kubectl config use-context $V1_KUBE_CONTEXT
-      - v1/.e2e/scripts/init.sh "${{steps.build_v1.imageId}}"
-      - kubectl config use-context $V2_KUBE_CONTEXT
-      - v2/.e2e/scripts/init.sh "${{steps.build_v2.imageId}}"
+      - curl -L -o vcluster "https://github.com/loft-sh/vcluster/releases/download/v0.23.0/vcluster-linux-amd64" && chmod +x ./vcluster && mv ./vcluster /usr/local/bin/vcluster
+      - kubectl config use-context $KUBE_CONTEXT
+      - .e2e/scripts/init.sh "${{steps.build.imageId}}"
       when:
         steps:
-          - name: create_clusters
-            on:
-              - success
-          - name: build_v1
+          - name: create_cluster
             on:
               - success
-          - name: build_v2
+          - name: build
             on:
               - success
 
@@ -141,8 +105,7 @@ steps:
     image: 'ghcr.io/kyverno/chainsaw:v0.2.5'
     working_directory: '${{clone}}'
     commands:
-    - chainsaw test --kube-context $V1_KUBE_CONTEXT --test-file .e2e/chainsaw-tests.yaml --skip-delete
-    - chainsaw test --kube-context $V2_KUBE_CONTEXT --test-file .e2e/chainsaw-tests.yaml --skip-delete
+    - chainsaw test --kube-context $KUBE_CONTEXT --test-file .e2e/chainsaw-tests.yaml --skip-delete
     when:
       steps:
         - name: init_test_envs

v2/devspace.yaml → devspace.yaml

@@ -12,18 +12,18 @@ hooks:
       fi
 
 deployments:
-  prometheus-operator:
+  prometheus-operator-crds:
     helm:
       chart:
-        name: kube-prometheus-stack
+        name: prometheus-operator-crds
         repo: https://prometheus-community.github.io/helm-charts
-        version: 60.2.0
+        version: 18.0.1
   vcluster:
     helm:
       chart:
         name: vcluster
         repo: https://charts.loft.sh
-        version: v0.20.0-beta.5
+        version: v0.23.0
       values:
         controlPlane:
           advanced:
@@ -36,6 +36,11 @@ deployments:
                 enabled: false
               readinessProbe:
                 enabled: false
+            resources:
+              limits:
+                memory: 4Gi
+              requests:
+                memory: 4Gi
           distro:
             k3s:
               enabled: true
@@ -53,13 +58,13 @@ deployments:
                     verbs: ["create", "delete", "patch", "update", "get", "list", "watch"]
               clusterRole:
                 extraRules:
-                  - apiGroups: [ "apiextensions.k8s.io" ]
-                    resources: [ "customresourcedefinitions" ]
-                    verbs: [ "get", "list", "watch" ]
+                  - apiGroups: ["apiextensions.k8s.io"]
+                    resources: ["customresourcedefinitions"]
+                    verbs: ["get", "list", "watch"]
 dev:
   vcluster:
     imageSelector: "ghcr.io/loft-sh/vcluster-pro"
-    devImage: golang:1.22.2
+    devImage: golang:1.23.2
     workingDir: /plugins/prometheus-operator-resources
     container: syncer
     terminal:

v2/devspace_start.sh → devspace_start.sh

@@ -7,8 +7,8 @@ COLOR_RESET="\033[0m"
 if [ ! -f "/vcluster/syncer" ]; then
   echo "Downloading vCluster syncer..."
   mkdir -p /vcluster
-  curl -L -o /vcluster/syncer "https://github.com/loft-sh/vcluster/releases/download/v0.20.0-beta.5/syncer-linux-$(go env GOARCH)"
-  curl -L -o /usr/local/bin/kine "https://github.com/k3s-io/kine/releases/download/v0.11.9/kine-$(go env GOARCH)"
+  curl -L -o /vcluster/syncer "https://github.com/loft-sh/vcluster/releases/download/v0.23.0/syncer-linux-$(go env GOARCH)"
+  curl -L -o /usr/local/bin/kine "https://github.com/k3s-io/kine/releases/download/v0.13.8/kine-$(go env GOARCH)"
   chmod +x /vcluster/syncer
   chmod +x /usr/local/bin/kine
   echo "Successfully downloaded syncer"