postgres-operator

postgres-operator/README.md

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+# Files
+quickstart-for-gke.sh. Tested version available in directory, or latest from: https://github.com/CrunchyData/postgres-operator/blob/master/examples/quickstart-for-gke.sh
+
+# setup storage
+```
+kubectl create -f storage.yml
+```
+
+# setup Operator
+```
+./quickstart-for-gke.sh
+./set-path.sh 
+```
+
+After these commands you'll need to logout and login again.
+
+# port forwarding
+
+```
+kubectl port-forward postgres-operator-xxx-yyy 18443:8443
+```
+
+# Test command
+
+```
+pgo version
+```
+
+# Create cluster
+
+```
+pgo create cluster mycluster
+pgo show cluster all
+```
+
+# show secrets
+```
+pgo show cluster mycluster --show-secrets=true
+```
+
+
+# Create read replic
+```
+pgo scale mycluster
+```
+
+# manually failover
+```
+pgo failover mycluster --query
+pgo failover mycluster --target=mycluster-xxx
+kubectl get pgtasks mycluster-failover -o yaml
+```

postgres-operator/quickstart-for-gke.sh

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+#!/bin/bash
+
+# Copyright 2018 Crunchy Data Solutions, Inc.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOG="pgo-installer.log"
+
+export PGORELEASE=3.1
+PGO_RELEASE_REMOTE_URL="https://github.com/CrunchyData/postgres-operator/releases/download/$PGORELEASE/postgres-operator.$PGORELEASE.tar.gz"
+PGO_RELEASE_LOCAL_PATH="/tmp/postgres-operator.$PGORELEASE.tar.gz"
+
+echo "Testing for dependencies..." | tee -a $LOG
+
+which wget > /dev/null 2> /dev/null
+if [[ $? -ne 0 ]]; then
+	which curl > /dev/null 2> /dev/null
+	if [[ $? -ne 0 ]]; then
+		echo "The required dependency wget and/or curl is missing on your system." | tee -a $LOG
+		exit 1
+	else
+		PGO_HTTP_CMD="curl -L -s -o ${PGO_RELEASE_LOCAL_PATH} ${PGO_RELEASE_REMOTE_URL}"
+	fi
+else
+	PGO_HTTP_CMD="wget --quiet ${PGO_RELEASE_REMOTE_URL} -O ${PGO_RELEASE_LOCAL_PATH}"
+fi
+which kubectl > /dev/null 2> /dev/null
+if [[ $? -ne 0 ]]; then
+	echo "The required dependency kubectl is missing on your system." | tee -a $LOG
+	exit 1
+fi
+
+echo ""
+echo "Testing kubectl connection..." | tee -a $LOG
+echo ""
+kubectl get namespaces
+if [[ $? -ne 0 ]]; then
+	echo "kubectl is not connecting to your Kubernetes Cluster. A successful connection is required to proceed." | tee -a $LOG
+	exit 1
+fi
+
+echo "Connected to Kubernetes." | tee -a $LOG
+echo ""
+
+NAMESPACE=`kubectl config current-context`
+echo "The postgres-operator will be installed into the current namespace which is ["$NAMESPACE"]."
+
+echo -n "Do you want to continue the installation? [yes no] "
+read REPLY
+if [[ "$REPLY" != "yes" ]]; then
+	echo "Aborting installation."
+	exit 1
+fi
+
+export CO_CMD=kubectl
+export GOPATH=$HOME/odev
+export GOBIN=$GOPATH/bin
+export PATH=$PATH:$GOPATH/bin
+export CO_IMAGE_PREFIX=crunchydata
+export CO_IMAGE_TAG=centos7-3.1
+export COROOT=$GOPATH/src/github.com/crunchydata/postgres-operator
+export CO_APISERVER_URL=https://127.0.0.1:18443
+export PGO_CA_CERT=$COROOT/conf/apiserver/server.crt
+export PGO_CLIENT_CERT=$COROOT/conf/apiserver/server.crt
+export PGO_CLIENT_KEY=$COROOT/conf/apiserver/server.key
+
+echo "Setting environment variables in $HOME/.bashrc..." | tee -a $LOG
+
+cat <<'EOF' >> $HOME/.bashrc
+
+# operator env vars
+export CO_APISERVER_URL=https://127.0.0.1:18443
+export PGO_CA_CERT=$HOME/odev/src/github.com/crunchydata/postgres-operator/conf/apiserver/server.crt
+export PGO_CLIENT_CERT=$HOME/odev/src/github.com/crunchydata/postgres-operator/conf/apiserver/server.crt
+export PGO_CLIENT_KEY=$HOME/odev/src/github.com/crunchydata/postgres-operator/conf/apiserver/server.key
+#
+EOF
+
+echo "Setting up installation directory..." | tee -a $LOG
+
+mkdir -p $HOME/odev/src $HOME/odev/bin $HOME/odev/pkg
+mkdir -p $GOPATH/src/github.com/crunchydata/postgres-operator
+
+echo ""
+echo "Installing pgo server configuration..." | tee -a $LOG
+`${PGO_HTTP_CMD}`
+
+cd $COROOT
+tar xzf /tmp/postgres-operator.$PGORELEASE.tar.gz
+if [[ $? -ne 0 ]]; then
+	echo "ERROR: Problem unpackaging the $PGORELEASE release."
+	exit 1
+fi
+
+echo ""
+echo "Installing pgo client..." | tee -a $LOG
+
+mv pgo $GOBIN
+mv pgo-mac $GOBIN
+mv pgo.exe $GOBIN
+mv expenv.exe $GOBIN
+mv expenv-mac $GOBIN
+mv expenv $GOBIN
+
+echo "The available storage classes on your system:"
+kubectl get sc
+echo ""
+echo -n "Enter the name of the storage class to use: "
+read STORAGE_CLASS
+
+echo ""
+echo "Setting up pgo storage configuration for the selected storageclass..." | tee -a $LOG
+cp $COROOT/examples/pgo.yaml.storageclass $COROOT/conf/apiserver/pgo.yaml
+sed -i .bak 's/standard/'"$STORAGE_CLASS"'/' $COROOT/conf/apiserver/pgo.yaml
+sed -i .bak 's/demo/'"$NAMESPACE"'/' $COROOT/deploy/service-account.yaml
+sed -i .bak 's/demo/'"$NAMESPACE"'/' $COROOT/deploy/rbac.yaml
+
+echo ""
+echo "Setting up pgo client authentication..." | tee -a $LOG
+echo "username:password" > $HOME/.pgouser
+
+echo "For pgo bash completion you will need to install the bash-completion package." | tee -a $LOG
+
+cp $COROOT/examples/pgo-bash-completion $HOME/.bash_completion
+
+echo -n "Do you want to deploy the operator? [yes no] "
+read REPLY
+if [[ "$REPLY" == "yes" ]]; then
+	echo "Deploying the operator to the Kubernetes cluster..." | tee -a $LOG
+	$COROOT/deploy/deploy.sh | tee -a $LOG
+fi
+
+echo "Installation complete." | tee -a $LOG
+echo ""
+
+echo "At this point you can access the operator by using a port-forward command similar to:"
+podname=`kubectl get pod --selector=name=postgres-operator -o jsonpath={..metadata.name}`
+echo "kubectl port-forward " $podname " 18443:8443"
+echo "Run this in another terminal or in the background."
+
+echo ""
+echo "WARNING: For the postgres-operator settings to take effect, it is necessary to log out of your session and back in or reload your .bashrc file."
+
+echo ""
+echo "NOTE: In order to access the pgo CLI, place it within your PATH from its default location in $HOME/odev/bin/pgo."

postgres-operator/set-path.sh

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+#!/bin/bash
+echo 'export PATH=$PATH:~/odev/bin/' >> ~/.bashrc

postgres-operator/storage.yml

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+kind: StorageClass
+apiVersion: storage.k8s.io/v1beta1
+metadata:
+  name: standard
+provisioner: kubernetes.io/aws-ebs
+parameters:
+  type: gp2
+  zone: eu-west-1a