Lab 12, task 2

Author: kolayne

k8s/12.md

@@ -0,0 +1,29 @@
+# Lab 12
+
+## ConfigMap file
+
+```sh
+$ helm install app-py . -f secrets://./env-secrets.yaml
+NAME: app-py
+LAST DEPLOYED: Mon Apr 22 16:55:16 2024
+NAMESPACE: default
+STATUS: deployed
+REVISION: 1
+NOTES:
+1. Get the application URL by running these commands:
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get --namespace default svc -w app-py'
+  export SERVICE_IP=$(kubectl get svc --namespace default app-py --template "{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}")
+  echo http://$SERVICE_IP:5000
+$ kubectl wait deployment/app-py --for condition=available
+deployment.apps/app-py condition met
+$ kubectl get po
+NAME                      READY   STATUS    RESTARTS   AGE
+app-py-7d7d86657c-df667   1/1     Running   0          30s
+app-py-7d7d86657c-hq8nw   1/1     Running   0          30s
+app-py-7d7d86657c-jxgrj   1/1     Running   0          30s
+app-py-7d7d86657c-twd5l   1/1     Running   0          30s
+$ kubectl exec app-py-7d7d86657c-twd5l -- cat /persistent/config.json
+{"mole": ["hamsters"], "hamster": ["moles"]}
+$
+```

k8s/app-py/files/config.json

@@ -0,0 +1 @@
+{"mole": ["hamsters"], "hamster": ["moles"]}

k8s/app-py/templates/config_map.yaml

@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ .Release.Name }}-config-map
+data:
+  config.json: {{ .Files.Get "files/config.json" | quote }}

k8s/app-py/values.yaml

@@ -4,7 +4,7 @@ image:
   repository: kolay0ne/app_py
   pullPolicy: IfNotPresent
   # Overrides the image tag whose default is the chart appVersion.
-  tag: "lab8"
+  tag: "lab12"
 
 serviceAccount:
   # Specifies whether a service account should be created
@@ -84,17 +84,16 @@ autoscaling:
   # targetMemoryUtilizationPercentage: 80
 
 # Additional volumes on the output Deployment definition.
-volumes: []
-# - name: foo
-#   secret:
-#     secretName: mysecret
-#     optional: false
+volumes:
+ - name: config-map
+   configMap:
+     name: app-py-config-map
 
 # Additional volumeMounts on the output Deployment definition.
-volumeMounts: []
-# - name: foo
-#   mountPath: "/etc/foo"
-#   readOnly: true
+volumeMounts:
+ - name: config-map
+   mountPath: "/persistent"
+   readOnly: true
 
 nodeSelector: {}