ops: add k8s resources (#39)

hello-tracing-backend/k8s/deploy

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+usage() {
+  echo "Deploy to k8s"
+  echo "  -c  Context for kubectl"
+  echo "  -v  Version of the Docker image, i.e. the value of the tag"
+  echo "  -h  Print usage instructions"
+}
+
+while getopts "v:c:h" opt; do
+  case $opt in
+  c)
+    KUBECTL_CONTEXT=$OPTARG
+    ;;
+  v)
+    VERSION=$OPTARG
+    ;;
+  h)
+    usage
+    exit 0
+    ;;
+  esac
+done
+
+if [ -z "$VERSION" ]; then
+  VERSION=$(git tag | grep hello-tracing-backend | tr -d 'hello-tracing-backend-' | sort --version-sort -r | head -1 | cut -c 2-)
+  if [ -z "$VERSION" ]; then
+    echo "ERROR: cannot determine version" >&2
+    exit 1
+  fi
+fi
+export VERSION
+echo "Deploying version $VERSION"
+
+current_dir=$(pwd)
+cd $(dirname $0)
+kustomize build | envsubst | kubectl apply -f -
+cd $current_dir

hello-tracing-backend/k8s/hello-tracing-backend.yaml

@@ -0,0 +1,48 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: hello-tracing-backend-grpc
+  namespace: hello-tracing
+spec:
+  selector:
+    app: hello-tracing-backend
+  ports:
+    - name: grpc
+      port: 80
+      targetPort: grpc
+
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: hello-tracing-backend
+  namespace: hello-tracing
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: hello-tracing-backend
+  template:
+    metadata:
+      name: hello-tracing-backend
+      namespace: hello-tracing
+      labels:
+        app: hello-tracing-backend
+    spec:
+      containers:
+        - name: hello-tracing-backend
+          image: hseeberger/hello-tracing-backend:latest
+          imagePullPolicy: IfNotPresent
+          ports:
+            - name: grpc
+              containerPort: 8080
+          resources:
+            requests:
+              cpu: 25m
+              memory: 25Mi
+            limits:
+              cpu: 100m
+              memory: 100Mi
+          # readinessProbe:
+          #   grpc:
+          #     port: 8080

hello-tracing-backend/k8s/kustomization.yaml

@@ -0,0 +1,7 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - hello-tracing-backend.yaml
+images:
+  - name: hseeberger/hello-tracing-backend
+    newTag: $VERSION

hello-tracing-gateway/config/default.yaml

@@ -2,8 +2,8 @@ api:
   addr: 0.0.0.0
   port: 8080
 
-backend:
-  # endpoint: ...
+# backend:
+#   endpoint: ...
 
 tracing:
   service-name: hello-tracing-gateway

hello-tracing-gateway/k8s/deploy

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+usage() {
+  echo "Deploy to k8s"
+  echo "  -c  Context for kubectl"
+  echo "  -v  Version of the Docker image, i.e. the value of the tag"
+  echo "  -h  Print usage instructions"
+}
+
+while getopts "v:c:h" opt; do
+  case $opt in
+  c)
+    KUBECTL_CONTEXT=$OPTARG
+    ;;
+  v)
+    VERSION=$OPTARG
+    ;;
+  h)
+    usage
+    exit 0
+    ;;
+  esac
+done
+
+if [ -z "$VERSION" ]; then
+  VERSION=$(git tag | grep hello-tracing-gateway | tr -d 'hello-tracing-gateway-' | sort --version-sort -r | head -1 | cut -c 2-)
+  if [ -z "$VERSION" ]; then
+    echo "ERROR: cannot determine version" >&2
+    exit 1
+  fi
+fi
+export VERSION
+echo "Deploying version $VERSION"
+
+current_dir=$(pwd)
+cd $(dirname $0)
+kustomize build | envsubst | kubectl apply -f -
+cd $current_dir

hello-tracing-gateway/k8s/hello-tracing-gateway.yaml

@@ -0,0 +1,52 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: hello-tracing-gateway-http
+  namespace: hello-tracing
+spec:
+  selector:
+    app: hello-tracing-gateway
+  ports:
+    - name: http
+      port: 80
+      targetPort: http
+
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: hello-tracing-gateway
+  namespace: hello-tracing
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: hello-tracing-gateway
+  template:
+    metadata:
+      name: hello-tracing-gateway
+      namespace: hello-tracing
+      labels:
+        app: hello-tracing-gateway
+    spec:
+      containers:
+        - name: hello-tracing-gateway
+          image: hseeberger/hello-tracing-gateway:latest
+          imagePullPolicy: IfNotPresent
+          ports:
+            - name: http
+              containerPort: 8080
+          resources:
+            requests:
+              cpu: 25m
+              memory: 25Mi
+            limits:
+              cpu: 100m
+              memory: 100Mi
+          readinessProbe:
+            httpGet:
+              path: /
+              port: http
+          env:
+            - name: APP__BACKEND__ENDPOINT
+              value: http://hello-tracing-backend-grpc:80

hello-tracing-gateway/k8s/kustomization.yaml

@@ -0,0 +1,7 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - hello-tracing-gateway.yaml
+images:
+  - name: hseeberger/hello-tracing-backend
+    newTag: $VERSION

k8s/hello-tracing.yaml

@@ -0,0 +1,30 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: hello-tracing
+
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: hello-tracing
+  namespace: hello-tracing
+  annotations:
+    cert-manager.io/cluster-issuer: letsencrypt
+spec:
+  ingressClassName: nginx
+  tls:
+    - hosts:
+        - hello-tracing.heikoseeberger.de
+      secretName: hello-tracing-tls
+  rules:
+    - host: hello-tracing.heikoseeberger.de
+      http:
+        paths:
+          - pathType: Prefix
+            path: /
+            backend:
+              service:
+                name: hello-tracing-gateway-http
+                port:
+                  name: http