Added deploying docker-compose to kubernetes example.

ff94583b · Xueshan Feng · 39976ab1 · ff94583b · ff94583b · ff94583b
Commit ff94583b authored 6 years ago by Xueshan Feng
--- a/README.md
+++ b/README.md
@@ -230,8 +230,80 @@ Now you can connect to the guestbook application on http://127.0.0.1:8000 and si

 You can terminate the proxy by Control-C to in the proxy window.

+## Deploy to Kubernetes from a docker-compose file
+
+We are going to demo how to deploy docker-compose file to Kubernetes cluster. 
+
+* First clone this repo:
+
+```console
+$ git clone https://code.stanford.edu/sfeng/docker-for-mac-kubernetes
+```
+
+* Deploy a word web application
+
+```console
+$ DOCKER_ORCHESTRATOR=kubernetes docker stack deploy docker-web --compose-file docker-compose.yml
+Ignoring unsupported options: build
+
+Stack docker-web was created
+Waiting for the stack to be stable and running...
+ - Service words has one container running
+ - Service db has one container running
+ - Service web has one container running
+Stack docker-web is stable and running
+```
+
+* Verify pods and service are running
+
+```console
+$ docker stack services docker-web
+ID                  NAME                MODE                REPLICAS            IMAGE                   PORTS
+f37955ad-3e8        docker-web_db       replicated          1/1                 dockerdemos/lab-db
+f37c0e41-3e8        docker-web_web      replicated          1/1                 dockerdemos/lab-web     *:80->80/tcp
+f38e0067-3e8        docker-web_words    replicated          5/5                 dockerdemos/lab-words
+```
+
+Or if you want to use kubectl:
+
+```console
+$ kubectl get pods,svc
+NAME                        READY     STATUS    RESTARTS   AGE
+po/db-cc6d959d-t2j8l        1/1       Running   0          1m
+po/web-bf8c55f48-56d2v      1/1       Running   0          1m
+po/words-657d8f455b-bv6vk   1/1       Running   0          1m
+po/words-657d8f455b-f9bjf   1/1       Running   0          1m
+po/words-657d8f455b-lkdll   1/1       Running   0          1m
+po/words-657d8f455b-ltq26   1/1       Running   0          1m
+po/words-657d8f455b-t85ls   1/1       Running   0          1m
+
+NAME                TYPE           CLUSTER-IP     EXTERNAL-IP   PORT(S)        AGE
+svc/db              ClusterIP      None           <none>        55555/TCP      1m
+svc/kubernetes      ClusterIP      10.96.0.1      <none>        443/TCP        3h
+svc/web             ClusterIP      None           <none>        55555/TCP      1m
+svc/web-published   LoadBalancer   10.110.27.41   localhost     80:31119/TCP   1m
+svc/words           ClusterIP      None           <none>        55555/TCP      1m
+
+`svc/web-published` is the frontend that exposed to external host. Just point your browser to
+http://localhost:80. You get `hello-world!`
+
+* To update the content, edi the web/static/index.html, then
+
+```console
+$ DOCKER_ORCHESTRATOR=kubernetes docker stack up docker-web --compose-file docker-compose.yml
+```
+
+* List stacks
+
 ## Teardown

+* Delete the docker-web applicaiton if you deployed it
+
+```console
+$ DOCKER_ORCHESTRATOR=kubernetes docker stack rm docker-web
+Removing stack: docker-web
+```
+
 * Delete dashboard application

 ```console

--- a/example/docker-compose.yml
+++ b/example/docker-compose.yml
+version: '3.3'
+
+services:
+  web:
+    build: web
+    image: dockerdemos/lab-web
+    volumes:
+     - "./web/static:/static"
+    ports:
+     - "80:80"
+
+  words:
+    build: words
+    image: dockerdemos/lab-words
+    deploy:
+      replicas: 5
+      endpoint_mode: dnsrr
+      resources:
+        limits:
+          memory: 16M
+        reservations:
+          memory: 16M
+
+  db:
+    build: db
+    image: dockerdemos/lab-db
--- a/example/web/static/index.html
+++ b/example/web/static/index.html
+<html>
+<header><title>Kubernetes with Docker-for-Mac</title></header>
+<body>
+Hello World!
+</body>
+</html>
+