E2E Tests with multiple apps

2026-05-18 03:25:00 +00:00 · 2020-01-20 23:02:50 -08:00
parent 89367be008
commit e851e5eb94
2 changed files with 203 additions and 8 deletions
--- a/examples/alphaTestExamples/MultipleDeployments.md
+++ b/examples/alphaTestExamples/MultipleDeployments.md
@@ -0,0 +1,155 @@
+[kind]: https://github.com/kubernetes-sigs/kind
+
+# Demo: Multiple Deployments
+
+This demo helps you to multiple services on same kubenetes cluster using kustomize.
+
+Steps:
+1. Create the resources files for wordpress service.
+2. Create the resources files for mysql service.
+3. Spin-up kubernetes cluster on local using [kind].
+4. Deploy the wordpress app using kustomize and verify the status.
+5. Deploy the mysql app using kustomize on same "kind" cluster and verify the status.
+6. Add and remove a resource to mysql service and verify prune.
+
+First define a place to work:
+
+<!-- @makeWorkplace @testE2EAgainstLatestRelease -->
+```
+DEMO_HOME=$(mktemp -d)
+```
+
+Alternatively, use
+
+> ```
+> DEMO_HOME=~/hello
+> ```
+
+## Establish the base
+
+<!-- @createBase @testE2EAgainstLatestRelease -->
+```
+BASE=$DEMO_HOME/base
+mkdir -p $BASE
+
+mkdir $BASE/wordpress
+mkdir $BASE/mysql
+
+curl -s -o "$BASE/wordpress/#1.yaml" "https://raw.githubusercontent.com\
+/kubernetes-sigs/kustomize\
+/master/examples/wordpress/wordpress\
+/{deployment,kustomization,service}.yaml"
+
+curl -s -o "$BASE/mysql/#1.yaml" "https://raw.githubusercontent.com\
+/kubernetes-sigs/kustomize\
+/master/examples/wordpress/mysql\
+/{secret,deployment,kustomization,service}.yaml"
+```
+
+Create a `grouping.yaml` resource. By this, you are defining the grouping of the current directory, `mysql`. Kustomize uses the unique label in this file to track any future state changes made to this directory. Make sure the label key is `kustomize.config.k8s.io/inventory-id` and give any unique label value and DO NOT change it in future.
+<!-- @createGroupingYaml @testE2EAgainstLatestRelease-->
+```
+cat <<EOF >$BASE/mysql/grouping.yaml
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: inventory-map
+  labels:
+    kustomize.config.k8s.io/inventory-id: mysql-app
+EOF
+```
+
+<!-- @setGoBin @testE2EAgainstLatestRelease -->
+```
+MYGOBIN=$GOPATH/bin
+```
+
+Delete any existing kind cluster and create a new one. By default the name of the cluster is "kind"
+<!-- @deleteAndCreateKindCluster @testE2EAgainstLatestRelease -->
+```
+$MYGOBIN/kind delete cluster;
+$MYGOBIN/kind create cluster;
+```
+
+Let's run the wordpress and mysql services.
+<!-- @RunWordpressAndMysql @testE2EAgainstLatestRelease -->
+```
+export KUSTOMIZE_ENABLE_ALPHA_COMMANDS=true
+
+$MYGOBIN/kustomize resources apply $BASE/mysql --status;
+
+status=$(mktemp);
+$MYGOBIN/resource status fetch $BASE/mysql > $status
+
+test 1 == \
+  $(grep "mysql" $status | grep "Deployment is available. Replicas: 1" | wc -l); \
+  echo $?
+
+test 1 == \
+  $(grep "mysql-pass" $status | grep "Resource is always ready" | wc -l); \
+  echo $?
+
+test 1 == \
+  $(grep "mysql" $status | grep "Service is ready" | wc -l); \
+  echo $?
+
+$MYGOBIN/kustomize resources apply $BASE/wordpress --status;
+
+status=$(mktemp);
+$MYGOBIN/resource status fetch $BASE/wordpress > $status
+
+test 1 == \
+  $(grep "wordpress" $status | grep "Deployment is available. Replicas: 1" | wc -l); \
+  echo $?
+
+test 1 == \
+  $(grep "wordpress" $status | grep "Service is ready" | wc -l); \
+  echo $?
+```
+
+Let's replace the secret resource from mysql service and verify prune and addition of resource.
+<!-- @ReplaceResourceInMysql @testE2EAgainstLatestRelease -->
+
+```
+cat <<EOF >$BASE/mysql/secret2.yaml
+apiVersion: v1
+kind: Secret
+metadata:
+  name: mysql-pass2
+type: Opaque
+data:
+  # Default password is "admin".
+  password: YWRtaW5=
+EOF
+
+rm $BASE/mysql/secret.yaml
+
+sed -i.bak 's/secret/secret2/' \
+    $BASE/mysql/kustomization.yaml
+
+sed -i.bak 's/mysql-pass/mysql-pass2/' \
+    $BASE/mysql/deployment.yaml
+
+$MYGOBIN/kustomize resources apply $BASE/mysql --status;
+
+status=$(mktemp);
+$MYGOBIN/resource status fetch $BASE/mysql > $status
+
+test 1 == \
+  $(grep "mysql" $status | grep "Deployment is available. Replicas: 1" | wc -l); \
+  echo $?
+
+test 1 == \
+  $(grep "mysql-pass2" $status | grep "Resource is always ready" | wc -l); \
+  echo $?
+
+test 1 == \
+  $(grep "mysql" $status | grep "Service is ready" | wc -l); \
+  echo $?
+```
+
+Clean-up the cluster 
+<!-- @deleteKindCluster @testE2EAgainstLatestRelease -->
+```
+$MYGOBIN/kind delete cluster;
+```