Merge pull request #18 from stakater-docker/ecr-login

add support for ECR credentials login

Dockerfile

@@ -155,6 +155,11 @@ RUN wget https://github.com/containers/libpod/archive/v${PODMAN_VERSION}.tar.gz
   && tar -xvzf v${PODMAN_VERSION}.tar.gz \
   && cd libpod-${PODMAN_VERSION}/ \
   && make binaries && make install PREFIX=/usr
+ARG ECR_CREDENTIALS_HELPER_VERSION=0.3.1
+ARG ECR_CREDENTIALS_HELPER_URL=https://amazon-ecr-credential-helper-releases.s3.us-east-2.amazonaws.com/${ECR_CREDENTIALS_HELPER_VERSION}/linux-amd64/docker-credential-ecr-login
+RUN wget ${ECR_CREDENTIALS_HELPER_URL} \
+  && mv docker-credential-ecr-login /usr/bin \
+  && chmod +x /usr/bin/docker-credential-ecr-login
 ADD bootstrap.sh /
 ADD binaries/* /usr/local/bin/
 ENTRYPOINT ["/bootstrap.sh"]