cluster operations

cluster-up.sh

@@ -4,15 +4,17 @@ set -o errexit
 set -o pipefail
 set -o nounset
 
+k8s_version=$(gcloud container get-server-config --format=json | jq -r '.validNodeVersions[0]')
+
 gcloud container clusters create demo \
-    --cluster-version=1.8.3-gke.0 \
+    --cluster-version=${k8s_version} \
     --zone=europe-west3-a \
     --additional-zones=europe-west3-b,europe-west3-c \
     --num-nodes=1 \
     --machine-type=n1-standard-1 \
     --scopes=default,storage-rw
 
-gcloud container clusters get-credentials demo
+gcloud container clusters get-credentials demo -z=europe-west3-a
 
 kubectl create clusterrolebinding "cluster-admin-$(whoami)" \
     --clusterrole=cluster-admin \

faas-async-down.sh → openfaas-down.sh

@@ -4,4 +4,4 @@ set -o errexit
 set -o pipefail
 set -o nounset
 
-kubectl delete -f ./ns.yml
+kubectl delete -f ./namespaces.yaml

openfaas-up.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+
+set -o errexit
+set -o pipefail
+set -o nounset
+
+get_gateway_ip() {
+    kubectl -n openfaas describe service caddy-lb | grep Ingress | awk '{ print $NF }'
+}
+
+# validate inputs
+if [ -z "$basic_auth_user" ]; then
+ echo "basic_auth_user is required"
+ exit 1
+fi
+
+if [ -z "$basic_auth_password" ]; then
+ echo "basic_auth_password is required"
+ exit 1
+fi
+
+# create namespaces
+kubectl apply -f ./namespaces.yaml
+
+# create basic-auth secrets
+kubectl -n openfaas create secret generic basic-auth \
+    --from-literal=user=${basic_auth_user} \
+    --from-literal=password=${basic_auth_password}
+
+# deploy OpenFaaS
+kubectl apply -f ./openfaas
+
+# wait for the public IP to assigned
+until [[ "$(get_gateway_ip)" ]]
+ do sleep 1;
+ echo -n ".";
+done
+echo "."
+gateway_ip=$(get_gateway_ip)
+echo "OpenFaaS Gateway IP: ${gateway_ip}"
+
+# save OpenFaaS credentials
+echo ${basic_auth_password} | faas-cli login -u ${basic_auth_user} --password-stdin --gateway=http://${gateway_ip}
+