Consolidate YAML files [part-3] (#9237)
This PR consolidates YAML files used in `tasks/run-application` subdirectory.
This commit is contained in:
@@ -1,21 +0,0 @@
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apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
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kind: Deployment
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metadata:
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name: patch-demo
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spec:
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replicas: 2
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selector:
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matchLabels:
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app: nginx
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template:
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metadata:
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labels:
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app: nginx
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spec:
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containers:
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- name: patch-demo-ctr
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image: nginx
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tolerations:
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- effect: NoSchedule
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key: dedicated
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value: test-team
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@@ -385,13 +385,13 @@ HorizontalPodAutoscaler.
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Instead of using `kubectl autoscale` command to create a HorizontalPodAutoscaler imperatively we
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can use the following file to create it declaratively:
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{{< code file="hpa-php-apache.yaml" >}}
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{{< codenew file="application/hpa/php-apache.yaml" >}}
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We will create the autoscaler by executing the following command:
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```shell
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$ kubectl create -f https://k8s.io/docs/tasks/run-application/hpa-php-apache.yaml
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$ kubectl create -f https://k8s.io/examples/application/hpa/php-apache.yaml
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horizontalpodautoscaler "php-apache" created
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```
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{{% /capture %}}
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{{% /capture %}}
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@@ -1,13 +0,0 @@
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apiVersion: autoscaling/v1
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kind: HorizontalPodAutoscaler
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metadata:
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name: php-apache
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namespace: default
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spec:
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scaleTargetRef:
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apiVersion: apps/v1
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kind: Deployment
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name: php-apache
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minReplicas: 1
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maxReplicas: 10
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targetCPUUtilizationPercentage: 50
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@@ -1,16 +0,0 @@
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: mysql
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labels:
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app: mysql
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data:
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master.cnf: |
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# Apply this config only on the master.
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[mysqld]
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log-bin
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slave.cnf: |
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# Apply this config only on slaves.
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[mysqld]
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super-read-only
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@@ -1,43 +0,0 @@
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apiVersion: v1
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kind: Service
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metadata:
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name: mysql
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spec:
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ports:
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- port: 3306
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selector:
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app: mysql
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clusterIP: None
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---
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apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
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kind: Deployment
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metadata:
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name: mysql
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spec:
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selector:
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matchLabels:
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app: mysql
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strategy:
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type: Recreate
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template:
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metadata:
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labels:
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app: mysql
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spec:
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containers:
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- image: mysql:5.6
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name: mysql
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env:
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# Use secret in real usage
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- name: MYSQL_ROOT_PASSWORD
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value: password
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ports:
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- containerPort: 3306
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name: mysql
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volumeMounts:
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- name: mysql-persistent-storage
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mountPath: /var/lib/mysql
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volumes:
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- name: mysql-persistent-storage
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persistentVolumeClaim:
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claimName: mysql-pv-claim
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@@ -1,26 +0,0 @@
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kind: PersistentVolume
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apiVersion: v1
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metadata:
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name: mysql-pv-volume
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labels:
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type: local
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spec:
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storageClassName: manual
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capacity:
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storage: 20Gi
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accessModes:
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- ReadWriteOnce
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hostPath:
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path: "/mnt/data"
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---
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apiVersion: v1
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kind: PersistentVolumeClaim
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metadata:
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name: mysql-pv-claim
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spec:
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storageClassName: manual
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accessModes:
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- ReadWriteOnce
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resources:
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requests:
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storage: 20Gi
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@@ -1,30 +0,0 @@
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# Headless service for stable DNS entries of StatefulSet members.
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apiVersion: v1
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kind: Service
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metadata:
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name: mysql
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labels:
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app: mysql
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spec:
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ports:
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- name: mysql
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port: 3306
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clusterIP: None
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selector:
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app: mysql
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---
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# Client service for connecting to any MySQL instance for reads.
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# For writes, you must instead connect to the master: mysql-0.mysql.
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apiVersion: v1
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kind: Service
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metadata:
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name: mysql-read
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labels:
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app: mysql
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spec:
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ports:
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- name: mysql
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port: 3306
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selector:
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app: mysql
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@@ -1,167 +0,0 @@
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apiVersion: apps/v1
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kind: StatefulSet
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metadata:
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name: mysql
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spec:
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selector:
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matchLabels:
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app: mysql
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serviceName: mysql
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replicas: 3
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template:
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metadata:
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labels:
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app: mysql
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spec:
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initContainers:
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- name: init-mysql
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image: mysql:5.7
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command:
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- bash
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- "-c"
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- |
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set -ex
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# Generate mysql server-id from pod ordinal index.
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[[ `hostname` =~ -([0-9]+)$ ]] || exit 1
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ordinal=${BASH_REMATCH[1]}
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echo [mysqld] > /mnt/conf.d/server-id.cnf
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# Add an offset to avoid reserved server-id=0 value.
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echo server-id=$((100 + $ordinal)) >> /mnt/conf.d/server-id.cnf
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# Copy appropriate conf.d files from config-map to emptyDir.
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if [[ $ordinal -eq 0 ]]; then
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cp /mnt/config-map/master.cnf /mnt/conf.d/
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else
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cp /mnt/config-map/slave.cnf /mnt/conf.d/
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fi
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volumeMounts:
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- name: conf
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mountPath: /mnt/conf.d
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- name: config-map
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mountPath: /mnt/config-map
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- name: clone-mysql
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image: gcr.io/google-samples/xtrabackup:1.0
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command:
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- bash
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- "-c"
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- |
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set -ex
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# Skip the clone if data already exists.
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[[ -d /var/lib/mysql/mysql ]] && exit 0
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# Skip the clone on master (ordinal index 0).
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[[ `hostname` =~ -([0-9]+)$ ]] || exit 1
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ordinal=${BASH_REMATCH[1]}
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[[ $ordinal -eq 0 ]] && exit 0
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# Clone data from previous peer.
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ncat --recv-only mysql-$(($ordinal-1)).mysql 3307 | xbstream -x -C /var/lib/mysql
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# Prepare the backup.
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xtrabackup --prepare --target-dir=/var/lib/mysql
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volumeMounts:
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- name: data
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mountPath: /var/lib/mysql
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subPath: mysql
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- name: conf
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mountPath: /etc/mysql/conf.d
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containers:
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- name: mysql
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image: mysql:5.7
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env:
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- name: MYSQL_ALLOW_EMPTY_PASSWORD
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value: "1"
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ports:
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- name: mysql
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containerPort: 3306
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volumeMounts:
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- name: data
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mountPath: /var/lib/mysql
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subPath: mysql
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- name: conf
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mountPath: /etc/mysql/conf.d
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resources:
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requests:
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cpu: 500m
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memory: 1Gi
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livenessProbe:
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exec:
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command: ["mysqladmin", "ping"]
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initialDelaySeconds: 30
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periodSeconds: 10
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timeoutSeconds: 5
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readinessProbe:
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exec:
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# Check we can execute queries over TCP (skip-networking is off).
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command: ["mysql", "-h", "127.0.0.1", "-e", "SELECT 1"]
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initialDelaySeconds: 5
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periodSeconds: 2
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timeoutSeconds: 1
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- name: xtrabackup
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image: gcr.io/google-samples/xtrabackup:1.0
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ports:
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- name: xtrabackup
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containerPort: 3307
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command:
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- bash
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- "-c"
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- |
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set -ex
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cd /var/lib/mysql
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# Determine binlog position of cloned data, if any.
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if [[ -f xtrabackup_slave_info ]]; then
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# XtraBackup already generated a partial "CHANGE MASTER TO" query
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# because we're cloning from an existing slave.
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mv xtrabackup_slave_info change_master_to.sql.in
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# Ignore xtrabackup_binlog_info in this case (it's useless).
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rm -f xtrabackup_binlog_info
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elif [[ -f xtrabackup_binlog_info ]]; then
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# We're cloning directly from master. Parse binlog position.
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[[ `cat xtrabackup_binlog_info` =~ ^(.*?)[[:space:]]+(.*?)$ ]] || exit 1
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rm xtrabackup_binlog_info
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echo "CHANGE MASTER TO MASTER_LOG_FILE='${BASH_REMATCH[1]}',\
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MASTER_LOG_POS=${BASH_REMATCH[2]}" > change_master_to.sql.in
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fi
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# Check if we need to complete a clone by starting replication.
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if [[ -f change_master_to.sql.in ]]; then
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echo "Waiting for mysqld to be ready (accepting connections)"
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until mysql -h 127.0.0.1 -e "SELECT 1"; do sleep 1; done
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echo "Initializing replication from clone position"
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# In case of container restart, attempt this at-most-once.
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mv change_master_to.sql.in change_master_to.sql.orig
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mysql -h 127.0.0.1 <<EOF
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$(<change_master_to.sql.orig),
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MASTER_HOST='mysql-0.mysql',
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MASTER_USER='root',
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MASTER_PASSWORD='',
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MASTER_CONNECT_RETRY=10;
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START SLAVE;
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EOF
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fi
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# Start a server to send backups when requested by peers.
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exec ncat --listen --keep-open --send-only --max-conns=1 3307 -c \
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"xtrabackup --backup --slave-info --stream=xbstream --host=127.0.0.1 --user=root"
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volumeMounts:
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- name: data
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mountPath: /var/lib/mysql
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subPath: mysql
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- name: conf
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mountPath: /etc/mysql/conf.d
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resources:
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requests:
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cpu: 100m
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memory: 100Mi
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volumes:
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- name: conf
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emptyDir: {}
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- name: config-map
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configMap:
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name: mysql
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volumeClaimTemplates:
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- metadata:
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name: data
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spec:
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accessModes: ["ReadWriteOnce"]
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resources:
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requests:
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storage: 10Gi
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@@ -60,10 +60,10 @@ and a StatefulSet.
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Create the ConfigMap from the following YAML configuration file:
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```shell
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kubectl create -f https://k8s.io/docs/tasks/run-application/mysql-configmap.yaml
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kubectl create -f https://k8s.io/examples/application/mysql/mysql-configmap.yaml
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```
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{{< code file="mysql-configmap.yaml" >}}
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{{< codenew file="application/mysql/mysql-configmap.yaml" >}}
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This ConfigMap provides `my.cnf` overrides that let you independently control
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configuration on the MySQL master and slaves.
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@@ -80,10 +80,10 @@ based on information provided by the StatefulSet controller.
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Create the Services from the following YAML configuration file:
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```shell
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kubectl create -f https://k8s.io/docs/tasks/run-application/mysql-services.yaml
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kubectl create -f https://k8s.io/examples/application/mysql/mysql-services.yaml
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```
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{{< code file="mysql-services.yaml" >}}
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{{< codenew file="application/mysql/mysql-services.yaml" >}}
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The Headless Service provides a home for the DNS entries that the StatefulSet
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controller creates for each Pod that's part of the set.
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@@ -106,10 +106,10 @@ writes.
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Finally, create the StatefulSet from the following YAML configuration file:
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```shell
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kubectl create -f https://k8s.io/docs/tasks/run-application/mysql-statefulset.yaml
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kubectl create -f https://k8s.io/examples/application/mysql/mysql-statefulset.yaml
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```
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{{< code file="mysql-statefulset.yaml" >}}
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{{< codenew file="application/mysql/mysql-statefulset.yaml" >}}
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You can watch the startup progress by running:
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@@ -48,16 +48,16 @@ Note: The password is defined in the config yaml, and this is insecure. See
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[Kubernetes Secrets](/docs/concepts/configuration/secret/)
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for a secure solution.
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{{< code file="mysql-deployment.yaml" >}}
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{{< code file="mysql-pv.yaml" >}}
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{{< codenew file="application/mysql/mysql-deployment.yaml" >}}
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{{< codenew file="application/mysql/mysql-pv.yaml" >}}
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1. Deploy the PV and PVC of the YAML file:
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kubectl create -f https://k8s.io/docs/tasks/run-application/mysql-pv.yaml
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kubectl create -f https://k8s.io/examples/application/mysql/mysql-pv.yaml
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1. Deploy the contents of the YAML file:
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kubectl create -f https://k8s.io/docs/tasks/run-application/mysql-deployment.yaml
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kubectl create -f https://k8s.io/examples/application/mysql/mysql-deployment.yaml
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1. Display information about the Deployment:
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@@ -26,12 +26,12 @@ in this task demonstrate a strategic merge patch and a JSON merge patch.
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Here's the configuration file for a Deployment that has two replicas. Each replica
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is a Pod that has one container:
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{{< code file="deployment-patch-demo.yaml" >}}
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{{< codenew file="application/deployment-patch.yaml" >}}
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Create the Deployment:
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```shell
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kubectl create -f https://k8s.io/docs/tasks/run-application/deployment-patch-demo.yaml
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kubectl create -f https://k8s.io/examples/application/deployment-patch.yaml
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```
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View the Pods associated with your Deployment:
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Reference in New Issue
Block a user