fix: quick metrics setup in kind with prometheus

Signed-off-by: Alexei Dodon <[email protected]>

Makefile

@@ -259,7 +259,7 @@ swagger:
 .PHONY: update-licenses
 # note: for predictable output of below sort command we use locale LC_ALL=C
 update-licenses: LC_ALL=C
-update-licenses:
+update-licenses: check-linux
 	@echo "Detecting and updating licenses ... please be patient!"
 	go install github.com/google/go-licenses@latest
 	$(shell echo "Module | License URL | License" > THIRD-PARTY-LICENSES.md; echo "---|---|---" >> THIRD-PARTY-LICENSES.md; for i in $$(go list -m all  | awk '{print $$1}'); do l=$$(go-licenses csv $$i 2>/dev/null); if [ $$? -ne 0 ]; then continue; fi; echo $$l | tr \, \| | tr ' ' '\n'; done | sort -u >> THIRD-PARTY-LICENSES.md)
@@ -362,6 +362,23 @@ run-container:
 	${CONTAINER_RUNTIME} run --rm --security-opt label=disable -v $$(pwd):/go/src/github.com/project-zot/zot \
 		zot-build:latest
 
+.PHONY: binary-minimal-container
+binary-minimal-container:
+	${CONTAINER_RUNTIME} build ${BUILD_ARGS} -f build/Dockerfile-minimal -t zot-minimal:latest .
+
+.PHONY: run-minimal-container
+run-minimal-container:
+	${CONTAINER_RUNTIME} run --rm --security-opt label=disable -v $$(pwd):/go/src/github.com/project-zot/zot \
+		zot-minimal:latest
+
+.PHONY: binary-exporter-container
+binary-exporter-container:
+	${CONTAINER_RUNTIME} build ${BUILD_ARGS} -f build/Dockerfile-zxp -t zxp:latest .
+
+.PHONY: run-exporter-container
+run-exporter-container:
+	${CONTAINER_RUNTIME} run --rm --security-opt label=disable zxp:latest
+
 .PHONY: oci-image
 oci-image: $(STACKER)
 	${STACKER} --debug build \

examples/metrics/Dockerfile

@@ -1,7 +1,7 @@
 # ---
 # Stage 1: Install certs, build binary, create default config file
 # ---
-FROM ghcr.io/project-zot/golang:1.19 AS builder
+FROM ghcr.io/project-zot/golang:1.20 AS builder
 RUN mkdir -p /go/src/github.com/project-zot/zot
 WORKDIR /go/src/github.com/project-zot/zot
 COPY . .

examples/metrics/Dockerfile-minimal

@@ -1,7 +1,7 @@
 # ---
 # Stage 1: Install certs, build binary, create default config file
 # ---
-FROM ghcr.io/project-zot/golang:1.19 AS builder
+FROM ghcr.io/project-zot/golang:1.20 AS builder
 RUN mkdir -p /go/src/github.com/project-zot/zot
 WORKDIR /go/src/github.com/project-zot/zot
 COPY . .

examples/metrics/Dockerfile-zxp

@@ -1,7 +1,7 @@
 # ---
 # Stage 1: Build binary, create default config file
 # ---
-FROM ghcr.io/project-zot/golang:1.19 AS builder
+FROM ghcr.io/project-zot/golang:1.20 AS builder
 RUN mkdir -p /go/src/github.com/project-zot/zot
 WORKDIR /go/src/github.com/project-zot/zot
 COPY . .

examples/metrics/kind_setup.sh

@@ -6,8 +6,8 @@ set -e
 CLUSTER_NAME=zot
 
 # Script tested with below kubectl & kind versions
-KUBECTL_VERSION=v1.17.5
-KIND_VERSION=v0.7.0
+KUBECTL_VERSION=v1.27.3
+KIND_VERSION=v0.20.0
 
 function install_bin() {
     if [ "$EUID" -ne 0 ]
@@ -41,9 +41,11 @@ kind load docker-image quay.io/prometheus-operator/prometheus-config-reloader:v0
 kind load docker-image quay.io/prometheus/prometheus:v2.22.1 --name ${CLUSTER_NAME}
 
 ## Build zot & zxp images
+pushd ../../
 make binary-container
 make binary-minimal-container
 make binary-exporter-container
+popd
 
 kind load docker-image zot-build:latest --name ${CLUSTER_NAME}
 kind load docker-image zot-minimal:latest --name ${CLUSTER_NAME}

examples/metrics/kubernetes/prometheus/prom_rbac.yaml

@@ -3,7 +3,7 @@ kind: ServiceAccount
 metadata:
   name: prometheus
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
   name: prometheus
@@ -28,7 +28,7 @@ rules:
 - nonResourceURLs: ["/metrics"]
   verbs: ["get"]
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
   name: prometheus

examples/metrics/kubernetes/zot-extended/deployment.yaml

@@ -18,7 +18,48 @@ spec:
       - name: zot-extended
         image: zot-build:latest
         imagePullPolicy: IfNotPresent
+        command: ["/usr/bin/zot"]
+        args: ["serve", "/zot-config/config.json"]
         ports:
         - name: zot-extended
           containerPort: 5000
-
+          protocol: TCP
+        volumeMounts:
+          - name: zot-config
+            mountPath: /zot-config
+            readOnly: false
+      volumes:
+        - name: zot-config
+          configMap:
+            name: zot-config
+            items:
+            - key: zot_config.json
+              path: config.json
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: zot-config
+data:
+  zot_config.json: |
+    {
+      "distSpecVersion":"1.0.1",
+      "storage": {
+          "rootDirectory": "/var/lib/registry"
+      },
+      "http": {
+          "address": "0.0.0.0",
+          "port": "5000"
+      },
+      "log": {
+          "level": "debug"
+      },
+      "extensions": {
+          "metrics": {
+              "enable": true,
+              "prometheus": {
+                  "path": "/metrics"
+              }
+          }
+      }
+    }