k8s_webservice.sh
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Authored by • Bstorm on Dec 19 2019, 12:34 AM.

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	F31482981: raw.txt
	Dec 19 2019, 8:17 PM

	F31482722: raw.txt
	Dec 19 2019, 3:46 PM

	F31481211: raw.txt
	Dec 19 2019, 12:34 AM

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• bd808

	#!/bin/bash

	# This is intended to be run as a tool user
	set -Eeuo pipefail

	function usage {
	echo -e "Usage (must be toolforge user account):\n"
	echo "k8s_webservice.sh <start\|stop>"
	echo ""
	echo "Example: k8s_webservice.sh start"
	}

	function startsvc {
	echo "starting..."
	cat <<EOF \| kubectl apply -f -
	apiVersion: apps/v1
	kind: Deployment
	metadata:
	labels:
	name: $1
	toolforge: tool
	tool.toolforge.org/service: "true"
	name: $1
	spec:
	replicas: 1
	selector:
	matchLabels:
	name: $1
	toolforge: tool
	tool.toolforge.org/service: "true"
	template:
	metadata:
	labels:
	name: $1
	toolforge: tool
	tool.toolforge.org/service: "true"
	spec:
	serviceAccountName: ${1}-obs
	containers:
	- command:
	- /usr/bin/webservice-runner
	- --type
	- uwsgi-python
	- --port
	- "8000"
	image: docker-registry.tools.wmflabs.org/toolforge-python37-sssd-web:latest
	imagePullPolicy: Always
	name: webservice
	ports:
	- containerPort: 8000
	name: http
	protocol: TCP
	workingDir: /data/project/${1}/
	EOF

	cat <<EOF \| kubectl apply -f -
	apiVersion: v1
	kind: Service
	metadata:
	labels:
	name: $1
	toolforge: tool
	tool.toolforge.org/service: "true"
	name: $1
	spec:
	ports:
	- name: http
	port: 8000
	protocol: TCP
	targetPort: 8000
	selector:
	name: $1
	type: ClusterIP
	EOF

	cat <<EOF \| kubectl apply -f -
	apiVersion: networking.k8s.io/v1beta1
	kind: Ingress
	metadata:
	annotations:
	nginx.ingress.kubernetes.io/rewrite-target: /$1/\$2
	labels:
	name: $1
	toolforge: tool
	tool.toolforge.org/service: "true"
	name: $1
	spec:
	rules:
	- host: tools.wmflabs.org
	http:
	paths:
	- backend:
	serviceName: $1
	servicePort: 8000
	path: /$1(/\|$)(.*)
	EOF
	}

	function stopsvc {
	echo "stopping..."
	echo "First the ingress"
	kubectl delete ingress $1
	echo "Now the service"
	kubectl delete svc $1
	echo "And the actual app"
	kubectl delete deployment $1
	}

	wmcsproject=$(</etc/wmcs-project)
	if ! [[ $USER == "${wmcsproject}."* ]]; then
	printf >&2 '%s: user name does not start with "%s": %s\n' "$0" "$wmcsproject" "$USER"
	usage
	exit 1
	fi

	prefix=$(($(echo -n $wmcsproject \| wc -c)+1))

	tool="${USER:prefix}"

	case $1 in
	start)
	startsvc "$tool"
	;;
	stop)
	stopsvc "$tool"
	;;
	restart)
	echo "For a restart, this seems kind of heavy"
	echo "Why don't you just run \"kubectl get pods\" and the \"kubectl delete pods <podname>\"?"
	;;
	*)
	echo "There must be an argument of start or stop"
	usage
	exit 1
	;;
	esac

Event Timeline

• Bstorm created this paste.Dec 19 2019, 12:34 AM

• Bstorm mentioned this in T233372: Create a "novaobserver" equivalent for Toolforge Kubernetes cluster inspection.

• Bstorm updated the paste's language from autodetect to bash.Dec 19 2019, 3:46 PM

• Bstorm edited the content of this paste. (Show Details)

• bd808 edited the content of this paste. (Show Details)Dec 19 2019, 8:17 PM

• bd808 added projects: Toolforge, Kubernetes.

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