zvrr/centos7-jre8

A CentOS7 docker container with JRE8 installed.

CentOS7 with Server JRE 8

This repository contains the Dockerfile for the centos7-jre8 image. It is based on the latest CentOS7 image and installs the Oracle Server JRE. The JRE is significantly smaller than the JDK and should be sufficient for most Java server applications.

Build instructions

We use Gradle to build the Docker images. Of course you can also use the Docker CLI commands to create and upload the image.

$ ./gradlew buildDockerImage

Next we need to squash the image size. For this we will export a container based on the image and import it as image again using plain Docker commands.

docker run -d <IMAGE_ID>
docker export <CONTAINER_ID> | docker import - qaware-oss-docker-registry.bintray.io/base/centos7-jre8:<VERSION>

<IMAGE_ID> - The created image ID name. <CONTAINER_ID> - The container ID echoed after the Docker run command. <VERSION> - Should be the actual Java version, like 8u77. When not specified "latest" will be used as the Bintray version name.

Pushing image to Bintray

Tag the latest image according to the following convention by running the following command:

docker tag <IMAGE_ID> qaware-oss-docker-registry.bintray.io/base/centos7-jre8

<IMAGE_ID> - The image ID from the latest versioned image previously created.

Use the Docker client push command to upload and publish your images (please use Docker v1.6 and above):

docker push qaware-oss-docker-registry.bintray.io/base/centos7-jre8:<VERSION>

<VERSION> - Should be the actual Java version, like 8u77. When not specified "latest" will be used as the Bintray version name.

Alternatively you can also use Gradle to upload the Docker images to Bintray.

$ ./gradlew pushDockerImage -PbintrayApiKey=<<INSERT API KEY>>

Downloading image from Bintray

The images are hosted at the QAware OSS Bintray Docker repository. Use the Docker client pull command to download an image (please use Docker v1.6 and above):

docker pull qaware-oss-docker-registry.bintray.io/base/centos7-jdk8:<VERSION>

<VERSION> - Optional. Should be the actual Java version like 8u77. When not specified "latest" will be used as the Bintray version name.

License

This software is provided under the MIT open source license, read the LICENSE file for details.