Update Docker Machine to 0.12.2 and add checksum checking for Docker Machine and dumb-init

.gitignore

@@ -6,8 +6,10 @@ builds/
 commands/helpers/archive.zip
 executors/docker/bindata.go
 dockerfiles/alpine/gitlab-ci-multi-runner-linux-amd64
+dockerfiles/alpine/checksums.sha256
 dockerfiles/build/gitlab-runner-helper
 dockerfiles/ubuntu/gitlab-ci-multi-runner_amd64.deb
+dockerfiles/ubuntu/checksums.sha256
 .idea/
 .editorconfig
 tests/ubuntu/.vagrant

ci/release_docker_images

@@ -83,7 +83,9 @@ logout() {
 }
 
 cp out/deb/gitlab-ci-multi-runner_amd64.deb dockerfiles/ubuntu/
+cp dockerfiles/checksums.sha256 dockerfiles/ubuntu
 cp out/binaries/gitlab-ci-multi-runner-linux-amd64 dockerfiles/alpine
+cp dockerfiles/checksums.sha256 dockerfiles/alpine
 
 build "gitlab/gitlab-runner:ubuntu-${ref_tag}" dockerfiles/ubuntu
 build "gitlab/gitlab-runner:alpine-${ref_tag}" dockerfiles/alpine

dockerfiles/alpine/Dockerfile

@@ -2,23 +2,27 @@ FROM alpine
 
 RUN adduser -D -S -h /home/gitlab-runner gitlab-runner
 
-ADD https://github.com/Yelp/dumb-init/releases/download/v1.0.2/dumb-init_1.0.2_amd64 /usr/bin/dumb-init
-RUN chmod +x /usr/bin/dumb-init
-
 RUN apk add --update \
-		bash \
-		ca-certificates \
-		git \
-		openssl \
-		wget
+    bash \
+    ca-certificates \
+    git \
+    openssl \
+    wget
 
 COPY gitlab-ci-multi-runner-linux-amd64 /usr/bin/gitlab-ci-multi-runner
+COPY checksums.sha256 /tmp/
 RUN chmod +x /usr/bin/gitlab-ci-multi-runner && \
-	ln -s /usr/bin/gitlab-ci-multi-runner /usr/bin/gitlab-runner && \
-	wget -q https://github.com/docker/machine/releases/download/v0.10.0/docker-machine-Linux-x86_64 -O /usr/bin/docker-machine && \
-	chmod +x /usr/bin/docker-machine && \
-	mkdir -p /etc/gitlab-runner/certs && \
-	chmod -R 700 /etc/gitlab-runner
+    ln -s /usr/bin/gitlab-ci-multi-runner /usr/bin/gitlab-runner && \
+    gitlab-runner --version && \
+    mkdir -p /etc/gitlab-runner/certs && \
+    chmod -R 700 /etc/gitlab-runner && \
+    wget -q https://github.com/docker/machine/releases/download/v0.12.2/docker-machine-Linux-x86_64 -O /usr/bin/docker-machine && \
+    chmod +x /usr/bin/docker-machine && \
+    docker-machine --version && \
+    wget -q https://github.com/Yelp/dumb-init/releases/download/v1.0.2/dumb-init_1.0.2_amd64 -O /usr/bin/dumb-init && \
+    chmod +x /usr/bin/dumb-init && \
+    dumb-init --version && \
+    sha256sum -c -w /tmp/checksums.sha256
 
 COPY entrypoint /
 RUN chmod +x /entrypoint

dockerfiles/checksums.sha256

+3c0a1a03653dff205f27bb178773f3c294319435a2589cf3cb4456423f8cef08  /usr/bin/docker-machine
+a8defac40aaca2ca0896c7c5adbc241af60c7c3df470c1a4c469a860bd805429  /usr/bin/dumb-init

dockerfiles/ubuntu/Dockerfile

 FROM ubuntu:14.04
 
-ADD https://github.com/Yelp/dumb-init/releases/download/v1.0.2/dumb-init_1.0.2_amd64 /usr/bin/dumb-init
-RUN chmod +x /usr/bin/dumb-init
-
 RUN apt-get update -y && \
     apt-get upgrade -y && \
     apt-get install -y ca-certificates wget apt-transport-https vim nano && \
@@ -10,6 +7,7 @@ RUN apt-get update -y && \
     rm -rf /var/lib/apt/lists/*
 
 COPY gitlab-ci-multi-runner_amd64.deb /tmp/
+COPY checksums.sha256 /tmp/
 RUN dpkg -i /tmp/gitlab-ci-multi-runner_amd64.deb; \
     apt-get update &&  \
     apt-get -f install -y && \
@@ -17,10 +15,15 @@ RUN dpkg -i /tmp/gitlab-ci-multi-runner_amd64.deb; \
     rm -rf /var/lib/apt/lists/* && \
     rm /tmp/gitlab-ci-multi-runner_amd64.deb && \
     gitlab-runner --version && \
-    wget -q https://github.com/docker/machine/releases/download/v0.10.0/docker-machine-Linux-x86_64 -O /usr/bin/docker-machine && \
-    chmod +x /usr/bin/docker-machine && \
     mkdir -p /etc/gitlab-runner/certs && \
-    chmod -R 700 /etc/gitlab-runner
+    chmod -R 700 /etc/gitlab-runner && \
+    wget -q https://github.com/docker/machine/releases/download/v0.12.2/docker-machine-Linux-x86_64 -O /usr/bin/docker-machine && \
+    chmod +x /usr/bin/docker-machine && \
+    docker-machine --version && \
+    wget -q https://github.com/Yelp/dumb-init/releases/download/v1.0.2/dumb-init_1.0.2_amd64 -O /usr/bin/dumb-init && \
+    chmod +x /usr/bin/dumb-init && \
+    dumb-init --version && \
+    sha256sum --check --strict /tmp/checksums.sha256
 
 COPY entrypoint /
 RUN chmod +x /entrypoint