refactor docker build and docker release (#90)

* refactor docker build and docker release

* update Changelog

* Update CHANGELOG.md

* Update Dockerfile

.dockerignore

@@ -0,0 +1,10 @@
+.editorconfig
+.git
+.github
+.gitignore
+Dockerfile
+img
+License
+.codecov.yml
+*.md
+LICENSE

.github/workflows/release.yml

@@ -56,12 +56,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v1
-      - name: Build dotenv-linter
-        run: |
-          rustup target add x86_64-unknown-linux-musl
-          cargo build --release --target x86_64-unknown-linux-musl
-          mv target/x86_64-unknown-linux-musl/release/dotenv-linter ./dotenv-linter
-          chmod +x dotenv-linter
       - name: Build and push image
         run: |
           GIT_TAG=$(git describe --tags `git rev-list --tags --max-count=1` | sed "s/v//")

CHANGELOG.md

@@ -8,7 +8,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### 🚀 Added
 
 ### 🔧 Changed
-- Use `Line.get_key` in all checks [#89](https://github.com/mgrachev/dotenv-linter/pull/89) ([@pineapplethief](https://github.com/pineapplethief))
+- Refactor `Github Actions` and reduce `Docker Image size` [#90](https://github.com/mgrachev/dotenv-linter/pull/89) ([@Macbet](https://github.com/Macbet))
+- Use `Line.get_key` in all checkers [#89](https://github.com/mgrachev/dotenv-linter/pull/89) ([@pineapplethief](https://github.com/pineapplethief))
 
 ## [v1.1.1] - 2020-02-18
 ### 🔧 Changed

Dockerfile

@@ -1,5 +1,10 @@
-FROM alpine:latest
+FROM rust:1.41 as builder
+WORKDIR /app 
+COPY . /app
+RUN cargo build --release  && \
+    chmod +x target/release/dotenv-linter
 
-COPY dotenv-linter /usr/local/bin/
+FROM scratch
 
-ENTRYPOINT ["dotenv-linter"]
+COPY --from=builder /app/target/release/dotenv-linter /
+ENTRYPOINT ["/dotenv-linter"]