Find Java version being used inside vRO / vRA 8.x

Here's a small article to identify the Java version being used inside vRO or vRA 8.x

As a first step one has to identify container id

Let's first grep for VCO processes

docker ps | grep vco

The output of above command would be as follows

root@premvra [ ~ ]# docker ps | grep vco

cb770fa8f97d        07b9846ebc64        "/bin/bash -c './cre…"   2 weeks ago         Up 2 weeks                              k8s_vco-controlcenter-app_vco-app-54cfbdbdc-2k7wc_prelude_473e2e29-9b70-11ea-8c90-005056a77fe1_0

d572660d055c        07b9846ebc64        "/bin/bash -c './cre…"   2 weeks ago         Up 2 weeks                              k8s_vco-server-app_vco-app-54cfbdbdc-2k7wc_prelude_473e2e29-9b70-11ea-8c90-005056a77fe1_0

d59aebe8bf54        0ced08cb52f4        "dockerd-entrypoint.…"   2 weeks ago         Up 2 weeks                              k8s_vco-polyglot-runner_vco-app-54cfbdbdc-2k7wc_prelude_473e2e29-9b70-11ea-8c90-005056a77fe1_0

95fbc06fa017        vmware/pause:3.1    "/pause"                 2 weeks ago         Up 2 weeks                              k8s_POD_vco-app-54cfbdbdc-2k7wc_prelude_473e2e29-9b70-11ea-8c90-005056a77fe1_0

We need to fetch container id from the above output one we want to know the java version

Since we are interested in vco-server-app and this has an id: d572660d055c from the above

Then use the following command to find out the java version

root@premvra [ ~ ]# docker exec -it d572660d055c java -version

openjdk version "1.8.0-internal"
OpenJDK Runtime Environment (build 1.8.0-internal-_2019_10_29_05_18-b00)
OpenJDK 64-Bit Server VM (build 25.71-b00, mixed mode)

We can also check from vco-app-server logs under /var/log/container/ which will ve logged during service startup.

{"log":"2020-05-21 14:37:49.278+0000 [localhost-startStop-1] INFO  {} [O11N] Sysprop: java.runtime.name = Java(TM) SE Runtime Environment\n","stream":"stdout","time":"2020-05-21T14:37:49.278367624Z"}

{"log":"2020-05-21 14:37:49.278+0000 [localhost-startStop-1] INFO  {} [O11N] Sysprop: java.runtime.version = 1.8.0_221-b11\n","stream":"stdout","time":"2020-05-21T14:37:49.278453768Z"}