kubernetes-up-and-running · fjammes · Nov 30, 2019
diff --git a/10-0-deployment.yaml b/10-0-deployment.yaml
@@ -0,0 +1,24 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: kuard
+spec:
+  selector:
+    matchLabels:
+      run: kuard
+  replicas: 200
+  strategy:
+    rollingUpdate:
+      maxSurge: 25%
+      maxUnavailable: 25%
+    type: RollingUpdate
+  template:
+    metadata:
+      annotations:
+        kubernetes.io/change-cause: "Update to blue kuard"
+      labels:
+        run: kuard
+    spec:
+      containers:
+      - name: kuard
+        image: gcr.io/kuar-demo/kuard-amd64:blue
diff --git a/9-1-fluentd.yaml → 11-1-fluentd.yaml b/9-1-fluentd.yaml → 11-1-fluentd.yaml
@@ -1,11 +1,14 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: DaemonSet
 metadata:
   name: fluentd
   namespace: kube-system
   labels:
     app: fluentd
 spec:
+  selector:
+    matchLabels:
+      app: fluentd
   template:
     metadata:
       labels:

diff --git a/9-2-nginx-fast-storage.yaml → 11-2-nginx-fast-storage.yaml b/9-2-nginx-fast-storage.yaml → 11-2-nginx-fast-storage.yaml
@@ -1,11 +1,15 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: "DaemonSet"
 metadata:
   labels:
     app: nginx
     ssd: "true"
   name: nginx-fast-storage
 spec:
+  selector:
+    matchLabels:
+      app: nginx
+      ssd: "true"
   template:
     metadata:
       labels:

diff --git a/10-1-job-oneshot.yaml → 12-1-job-oneshot.yaml b/10-1-job-oneshot.yaml → 12-1-job-oneshot.yaml
@@ -1,3 +1,4 @@
+# TODO fix image name (blue) in book
 apiVersion: batch/v1
 kind: Job
 metadata:

diff --git a/10-2-job-oneshot-failure1.yaml → 12-2-job-oneshot-failure1.yaml b/10-2-job-oneshot-failure1.yaml → 12-2-job-oneshot-failure1.yaml
diff --git a/10-3-job-parallel.yaml → 12-3-job-parallel.yaml b/10-3-job-parallel.yaml → 12-3-job-parallel.yaml
diff --git a/10-4-rs-queue.yaml → 12-4-rs-queue.yaml b/10-4-rs-queue.yaml → 12-4-rs-queue.yaml
@@ -1,4 +1,4 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: ReplicaSet
 metadata:
   labels:
@@ -8,6 +8,11 @@ metadata:
   name: queue
 spec:
   replicas: 1
+  selector:
+    matchLabels:
+      app: work-queue
+      component: queue
+      chapter: jobs
   template:
     metadata:
       labels:

diff --git a/10-5-service-queue.yaml → 12-5-service-queue.yaml b/10-5-service-queue.yaml → 12-5-service-queue.yaml
diff --git a/10-6-load-queue.sh → 12-6-load-queue.sh b/10-6-load-queue.sh → 12-6-load-queue.sh
diff --git a/10-7-job-consumers.yaml → 12-7-job-consumers.yaml b/10-7-job-consumers.yaml → 12-7-job-consumers.yaml
diff --git a/11-1-simple-config.txt → 13-1-my-config.txt b/11-1-simple-config.txt → 13-1-my-config.txt
diff --git a/11-2-kuard-config.yaml → 13-2-kuard-config.yaml b/11-2-kuard-config.yaml → 13-2-kuard-config.yaml
diff --git a/13-1-dns-service.yaml → 15-1-dns-service.yaml b/13-1-dns-service.yaml → 15-1-dns-service.yaml
diff --git a/13-10-mongo-simple.yaml → 15-10-mongo-simple.yaml b/13-10-mongo-simple.yaml → 15-10-mongo-simple.yaml
@@ -1,10 +1,13 @@
-apiVersion: apps/v1beta1
+apiVersion: apps/v1
 kind: StatefulSet
 metadata:
   name: mongo
 spec:
   serviceName: "mongo"
   replicas: 3
+  selector:
+    matchLabels:
+      app: mongo
   template:
     metadata:
       labels:

diff --git a/13-11-mongo-service.yaml → 15-11-mongo-service.yaml b/13-11-mongo-service.yaml → 15-11-mongo-service.yaml
diff --git a/15-12-1-mongo-init.sh b/15-12-1-mongo-init.sh
@@ -0,0 +1,45 @@
+ #!/bin/bash
+
+# Need to wait for the readiness health check to pass so that the
+# mongo names resolve. This is kind of wonky.
+until ping -c 1 ${HOSTNAME}.mongo; do
+  echo "waiting for DNS (${HOSTNAME}.mongo)..."
+  sleep 2
+done
+
+    until /usr/bin/mongo --eval 'printjson(db.serverStatus())'; do
+      echo "connecting to local mongo..."
+      sleep 2
+    done
+    echo "connected to local."
+
+    HOST=mongo-0.mongo:27017
+
+    until /usr/bin/mongo --host=${HOST} --eval 'printjson(db.serverStatus())'; do
+      echo "connecting to remote mongo..."
+      sleep 2
+    done
+    echo "connected to remote."
+
+    if [[ "${HOSTNAME}" != 'mongo-0' ]]; then
+      until /usr/bin/mongo --host=${HOST} --eval="printjson(rs.status())" \
+            | grep -v "no replset config has been received"; do
+        echo "waiting for replication set initialization"
+        sleep 2
+      done
+      echo "adding self to mongo-0"
+      /usr/bin/mongo --host=${HOST} \
+         --eval="printjson(rs.add('${HOSTNAME}.mongo'))"
+    fi
+
+    if [[ "${HOSTNAME}" == 'mongo-0' ]]; then
+      echo "initializing replica set"
+      /usr/bin/mongo --eval="printjson(rs.initiate(\
+          {'_id': 'rs0', 'members': [{'_id': 0, \
+           'host': 'mongo-0.mongo:27017'}]}))"
+    fi
+    echo "initialized"
+
+    while true; do
+      sleep 3600
+    done
diff --git a/13-12-mongo-configmap.yaml → 15-12-mongo-configmap.yaml b/13-12-mongo-configmap.yaml → 15-12-mongo-configmap.yaml
diff --git a/13-13-mongo.yaml → 15-13-mongo.yaml b/13-13-mongo.yaml → 15-13-mongo.yaml
@@ -1,10 +1,13 @@
-apiVersion: apps/v1beta1
+apiVersion: apps/v1
 kind: StatefulSet
 metadata:
   name: mongo
 spec:
   serviceName: "mongo"
   replicas: 3
+  selector:
+    matchLabels:
+      app: mongo
   template:
     metadata:
       labels:

diff --git a/13-2-external-ip-service.yaml → 15-2-external-ip-service.yaml b/13-2-external-ip-service.yaml → 15-2-external-ip-service.yaml
diff --git a/13-3-external-ip-endpoints.yaml → 15-3-external-ip-endpoints.yaml b/13-3-external-ip-endpoints.yaml → 15-3-external-ip-endpoints.yaml
diff --git a/13-4-nfs-volume.yaml → 15-4-nfs-volume.yaml b/13-4-nfs-volume.yaml → 15-4-nfs-volume.yaml
diff --git a/13-5-nfs-volume-claim.yaml → 15-5-nfs-volume-claim.yaml b/13-5-nfs-volume-claim.yaml → 15-5-nfs-volume-claim.yaml
diff --git a/13-6-mysql-replicaset.yaml → 15-6-mysql-replicaset.yaml b/13-6-mysql-replicaset.yaml → 15-6-mysql-replicaset.yaml
@@ -1,4 +1,4 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: ReplicaSet
 metadata:
   name: mysql

diff --git a/13-7-mysql-service.yaml → 15-7-mysql-service.yaml b/13-7-mysql-service.yaml → 15-7-mysql-service.yaml
diff --git a/13-8-storageclass.yaml → 15-8-storageclass.yaml b/13-8-storageclass.yaml → 15-8-storageclass.yaml
diff --git a/13-9-dynamic-volume-claim.yaml → 15-9-dynamic-volume-claim.yaml b/13-9-dynamic-volume-claim.yaml → 15-9-dynamic-volume-claim.yaml
diff --git a/14-1-parse.yaml → 17-1-parse.yaml b/14-1-parse.yaml → 17-1-parse.yaml
@@ -1,10 +1,13 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: parse-server
   namespace: default
 spec:
   replicas: 1
+  selector:
+    matchLabels:
+      run: parse-server
   template:
     metadata:
       labels:

diff --git a/14-9-redis-service.yaml → 17-10-redis-service.yaml b/14-9-redis-service.yaml → 17-10-redis-service.yaml
diff --git a/14-10-redis.yaml → 17-11-redis.yaml b/14-10-redis.yaml → 17-11-redis.yaml
@@ -1,9 +1,12 @@
-apiVersion: apps/v1beta1
+apiVersion: apps/v1
 kind: StatefulSet
 metadata:
   name: redis
 spec:
   replicas: 3
+  selector:
+    matchLabels:
+      app: redis
   serviceName: redis
   template:
     metadata:

diff --git a/14-2-parse-service.yaml → 17-2-parse-service.yaml b/14-2-parse-service.yaml → 17-2-parse-service.yaml
diff --git a/14-3-ghost-config.js → 17-3-ghost-config.js b/14-3-ghost-config.js → 17-3-ghost-config.js
diff --git a/14-4-ghost.yaml → 17-4-ghost.yaml b/14-4-ghost.yaml → 17-4-ghost.yaml
@@ -1,4 +1,4 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: ghost

diff --git a/14-4-master.conf → 17-5-master.conf b/14-4-master.conf → 17-5-master.conf
diff --git a/14-5-slave.conf → 17-6-slave.conf b/14-5-slave.conf → 17-6-slave.conf
diff --git a/14-6-sentinel.conf → 17-7-sentinel.conf b/14-6-sentinel.conf → 17-7-sentinel.conf
diff --git a/14-7-init.sh → 17-8-init.sh b/14-7-init.sh → 17-8-init.sh
diff --git a/14-8-sentinel.sh → 17-9-sentinel.sh b/14-8-sentinel.sh → 17-9-sentinel.sh
diff --git a/7-1-alpaca-prod-readiness.yaml b/7-1-alpaca-prod-readiness.yaml
@@ -0,0 +1,44 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: alpaca
+    env: prod
+    ver: "1"
+  name: alpaca-prod
+spec:
+  replicas: 3
+  revisionHistoryLimit: 10
+  selector:
+    matchLabels:
+      app: alpaca
+      env: prod
+      ver: "1"
+  strategy:
+    rollingUpdate:
+      maxSurge: 25%
+      maxUnavailable: 25%
+    type: RollingUpdate
+  template:
+    metadata:
+      labels:
+        app: alpaca
+        env: prod
+        ver: "1"
+    spec:
+      containers:
+      - image: gcr.io/kuar-demo/kuard-amd64:blue
+        imagePullPolicy: IfNotPresent
+        name: alpaca-prod
+        ports:
+        - containerPort: 8080
+          protocol: TCP
+        readinessProbe:
+          failureThreshold: 3
+          httpGet:
+            path: /ready
+            port: 8080
+            scheme: HTTP
+          periodSeconds: 2
+          successThreshold: 1
+          timeoutSeconds: 1
diff --git a/8-1-kuard-rs.yaml → 9-1-kuard-rs.yaml b/8-1-kuard-rs.yaml → 9-1-kuard-rs.yaml
@@ -1,9 +1,15 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: ReplicaSet
 metadata:
+  labels:
+    app: kuard
   name: kuard
 spec:
-  replicas: 1
+  replicas: 10
+  selector:
+    matchLabels:
+      app: kuard
+      version: "2"
   template:
     metadata:
       labels: