Update to Compose V2

.gitignore

@@ -20,3 +20,12 @@ L09-05 Docker Compose - Sample App/vote/dotnet/Vote/obj/Debug/netcoreapp2.1/Vote
 L09-05 Docker Compose - Sample App/worker/dotnet/Worker/obj/Debug/netcoreapp2.1/Worker.assets.cache
 L09-05 Docker Compose - Sample App/worker/dotnet/Worker/obj/Debug/netcoreapp2.1/Worker.csproj.AssemblyReference.cache
 L09-05 Docker Compose - Sample App/worker/dotnet/Worker/obj/Debug/netcoreapp2.1/Worker.GeneratedMSBuildEditorConfig.editorconfig
+L07-02 Multi Stage Build/obj/Debug/net6.0/.NETCoreApp,Version=v6.0.AssemblyAttributes.cs
+L07-02 Multi Stage Build/obj/Debug/net6.0/Code.AssemblyInfo.cs
+L07-02 Multi Stage Build/obj/Debug/net6.0/Code.AssemblyInfoInputs.cache
+L07-02 Multi Stage Build/obj/Debug/net6.0/Code.csproj.AssemblyReference.cache
+L07-02 Multi Stage Build/obj/Debug/net6.0/Code.GeneratedMSBuildEditorConfig.editorconfig
+L07-02 Multi Stage Build/obj/Debug/net6.0/Code.GlobalUsings.g.cs
+L07-02 Multi Stage Build/obj/Debug/net6.0/Code.RazorAssemblyInfo.cache
+L07-02 Multi Stage Build/obj/Debug/net6.0/Code.RazorAssemblyInfo.cs
+L07-02 Multi Stage Build/obj/Debug/net6.0/project.razor.json

L09-04 Docker Compose/docker-compose.yaml

@@ -1,24 +1,10 @@
-version: "3.5"
 services:
   web-fe:
     build: .
     command: python app.py
     ports:
-      - target: 5000
-        published: 5000
-    networks:
-      - counter-net
-    volumes:
-      - type: volume
-        source: counter-vol
-        target: /code
+      - 5000:5000
   redis:
     image: "redis:alpine"
-    networks:
-      counter-net:
-
-networks:
-  counter-net:
-
-volumes:
-  counter-vol:
+    ports:
+      - 6379

L09-05 Docker Compose - Sample App/backend/Dockerfile

@@ -0,0 +1,31 @@
+# if you're doing anything beyond your local machine, please pin this to a specific version at https://hub.docker.com/_/node/
+FROM node:lts
+
+# set our node environment, either development or production
+# defaults to production, compose overrides this to development on build and run
+ARG NODE_ENV=production
+ENV NODE_ENV $NODE_ENV
+
+WORKDIR /code
+
+# default to port 80 for node, and 9229 and 9230 (tests) for debug
+ARG PORT=80
+ENV PORT $PORT
+EXPOSE $PORT 9229 9230
+
+COPY package.json /code/package.json
+COPY package-lock.json /code/package-lock.json
+RUN npm ci
+
+# check every 30s to ensure this service returns HTTP 200
+HEALTHCHECK --interval=30s \
+  CMD node healthcheck.js
+
+# copy in our source code last, as it changes the most
+COPY . /code
+
+# if you want to use npm start instead, then use `docker run --init in production`
+# so that signals are passed properly. Note the code in index.js is needed to catch Docker signals
+# using node here is still more graceful stopping then npm with --init afaik
+# I still can't come up with a good production way to run with npm and graceful shutdown
+CMD [ "node", "src/index.js" ]

L09-05 Docker Compose - Sample App/backend/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2015-2017 Bret Fisher
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

L09-05 Docker Compose - Sample App/backend/healthcheck.js

@@ -0,0 +1,21 @@
+const http = require("http");
+
+const options = {
+  timeout: 2000,
+  host: "localhost",
+  port: process.env.PORT || 8080,
+  path: "/healthz" // must be the same as HEALTHCHECK in Dockerfile
+};
+
+const request = http.request(options, res => {
+  console.info("STATUS: " + res.statusCode);
+  process.exitCode = res.statusCode === 200 ? 0 : 1;
+  process.exit();
+});
+
+request.on("error", function(err) {
+  console.error("ERROR", err);
+  process.exit(1);
+});
+
+request.end();