After find some limitations on building SOA Docker image using Dockerfile (as volume access, default size image) I researched on how to improve building process and I found Packer (from the same guy that creates Vagrant).
To check why using Packer instead of Dockerfiles, go here.
I also moved OracleSOA directory from my forked oracle-docker repository to an independent repository: github.com/jeqo/oracle-soa-12c-docker.
Improvements
Basically Dockerfile scripts were moved to shell scripts and are called from Packer.
"provisioners": [
{
"type": "shell",
"scripts": [
"scripts/create-user.sh"
]
},
{
"type": "file",
"source": "./files/",
"destination": "/u01/"
},
{
"type": "shell",
"scripts": [
"scripts/install-java.sh"
],
"environment_vars": [
"JAVA_RPM=/data/{{user `java_rpm`}}"
]
},
{
"type": "shell",
"scripts": [
"scripts/install-soa.sh"
],
"environment_vars": [
"SOA_ZIP=/data/{{user `soa_zip`}}",
"SOA_PKG={{user `soa_pkg`}}",
"SOA_PKG2={{user `soa_pkg2`}}",
"JAVA_HOME=/usr/java/default",
"MW_HOME=/u01/oracle/soa"
]
}
]After provisioning, you can save your image, and if you want push it to Docker Hub:
"post-processors": [
[
{
"type": "docker-tag",
"repository": "jeqo/oracle-soa-12c",
"tag": "12.1.3-dev"
},
"docker-push"
]
]Very simple and straightforward JSON configuration.
Now you have a Docker image with SOA installer, ready to create your domain as this sample explained on my previous post.