Add github actions + Linting (#27)

* Add github actions
* Linting

.github/workflows/docker.yml

@@ -0,0 +1,20 @@
+name: Docker
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Build the Docker image
+      run: docker build --no-cache . --file Dockerfile --tag mikenye/picard:testing

.github/workflows/linting.yml

@@ -0,0 +1,45 @@
+name: Linting
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches: 
+      - master
+
+jobs:
+
+  shellcheck:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Pull koalaman/shellcheck:stable Image
+      run: docker pull koalaman/shellcheck:stable
+    - name: Run Shellcheck against shell scripts
+      run: docker run --rm -i -v "$PWD:/mnt" koalaman/shellcheck:stable $(find . -type f -exec grep -m1 -l -E '^#!.*sh.*' {} \; | grep -v '/.git/')
+#        docker run --rm -i -v "$PWD:/mnt" koalaman/shellcheck:stable $(find . -type f -exec grep -m1 -l -E '^#!.*execline.*' {} \; | grep -v '/.git/')
+
+  hadolint:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Pull hadolint/hadolint:latest Image
+      run: docker pull hadolint/hadolint:latest
+    - name: Run hadolint against Dockerfiles
+      run: docker run --rm -i -v "$PWD":/workdir --workdir /workdir --entrypoint hadolint hadolint/hadolint --ignore DL3008 --ignore SC2068 --ignore SC1091 --ignore DL3013 $(find . -type f -iname "Dockerfile*")
+
+  markdownlint:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Pull markdownlint/markdownlint:latest Image
+      run: docker pull markdownlint/markdownlint:latest
+    - name: Run markdownlint against *.md files
+      run: docker run --rm -i -v "$(pwd)":/workdir --workdir /workdir markdownlint/markdownlint:latest --rules ~MD013,~MD033,~MD029 $(find . -type f -iname '*.md' | grep -v '/.git/')