Merge pull request #126 from oduwsdl/publish

Publish Docker image to GitHub Package Registry

.github/workflows/publish.yml

@@ -0,0 +1,38 @@
+name: Publish Docker Images
+
+on:
+  push:
+    branches:
+      - master
+  release:
+    types:
+      - published
+
+jobs:
+  publish-master:
+    runs-on: ubuntu-18.04
+    if: github.ref == 'refs/heads/master'
+    steps:
+      - uses: actions/checkout@master
+      - name: Build and Publish master
+        uses: VaultVulp/gp-docker-action@master
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          image-name: memgator
+          image-tag: master
+  publish-release:
+    runs-on: ubuntu-18.04
+    if: startsWith(github.ref, 'refs/tags/')
+    steps:
+      - uses: actions/checkout@master
+      - name: Build and Publish latest
+        uses: VaultVulp/gp-docker-action@master
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          image-name: memgator
+      - name: Build and Publish versioned
+        uses: VaultVulp/gp-docker-action@master
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          image-name: memgator
+          extract-git-tag: true

README.md

@@ -69,10 +69,24 @@ Depending on the machine and operating system download appropriate binary from t
 
 ## Running as a Docker Container
 
-The first command below is not necessary, but it allows pulling the latest version of the MemGator Docker image.
+Build a Docker image locally from the source.
 
 ```
+$ git clone https://github.com/oduwsdl/MemGator.git
+$ cd MemGator
+$ docker image build -t oduwsdl/memgator .
+```
+
+Alternatively, pull a published image from one of the two Docker image registries below:
+
+```
+$ docker image pull docker.pkg.github.com/oduwsdl/memgator/memgator
 $ docker image pull oduwsdl/memgator
+```
+
+Run MemGator with various options inside a Docker container.
+
+```
 $ docker container run -it --rm oduwsdl/memgator -h
 $ docker container run -it --rm oduwsdl/memgator [options] {URI-R}
 $ docker container run -it --rm oduwsdl/memgator [options] {URI-R} {YYYY[MM[DD[hh[mm[ss]]]]]}