5. How to use docker compose for WebLogic Server
Prerequisites:
1. docker pull oraclelinux:7-slim
2. git clone https://github.com/oracle/docker-imag...
3. download server-jre1.8 latest version copy to OracleJava/dockerfiles build the image and make it as oracle/serverjre:8
4. download WebLogic 12.2.1.2.0 quick installer which is used for development, it is small in size. image name it as oracle/weblogic:12.2.1.2-developer
5. create new docker images where 12212-domain:latest using WLST and shell script which are available in container scripts.
6. create new docker images named as 1221-appdeploy:latest where it uses 12212-domain as base images.
7. docker pull httpd:2.4
6. download the proxy plugin for 12.2.1.2 create the 1221-webtier:latest [apache with proxy plugin configured]
Now lets pick the following docker-compose.yml file where it will use two images the two images : 1221-appdeploy, 1221-webtier
Using last session created admin container for create managedserver with port change
version: '2'
networks:
&network wlsnet:
driver: bridge
services:
Deploys the wlsServer with default hostname 'wlsadmin' used by scripts in 1221-domain.
&adm adminserver:
image: &i 1221-appdeploy
container_name: wlsadmin
ports:
"8001:7001"
networks:
*network
Deploys a container running a Managed Server and a Node Manager to control MS from wlsServer
managedserver:
image: *i
command: createServer.sh
networks:
*network
depends_on:
*adm
Deploys a container running only a node manager. to deploy a managed server here later, use wlsServer Web Console
nodemanager:
image: *i
command: createMachine.sh
networks:
*network
depends_on:
*adm
WebTier for load balancing requests to cluster
webtier:
image: 1221-webtier
networks:
*network
ports:
"8800:80"
environment:
WEBLOGIC_CLUSTER="managedserver:7001"
links:
managedserver
Next steps:
8. Validate the docker configuration syntax
docker-compose config
9. If all good then proceed for the run the containers - wlsadmin, managedserver, nodemanager and webtier
docker-compose up
10. Check the containers logs with container names as argument
docker-compose ps
docker logs wlscluster_managedserver_1 -f
11. Expansion of docker containers for clustered WebLogic domain.
docker-compose scale managedserver=4
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