This page (revision-9) was last changed on 23-Apr-2022 17:06 by Harry Metske

This page was created on 23-Apr-2022 17:05 by Harry Metske

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Version Date Modified Size Author Changes ... Change note
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Version management

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At line 93 added 81 lines
! Create docker image for your runnable jar
We user the following Dockerfile and built an image with it:
%%prettify
{{{
FROM alpine:3.3
MAINTAINER Harry Metske <metskem@apache.org>
RUN apk --update add openjdk8-jre
ADD testapp1-0.1.1.jar /
ENV LANG en_US.UTF-8
ENV CATALINA_OPTS -Djava.security.egd=file:/dev/./urandom
EXPOSE 8080
CMD ["java","-jar", "/testapp1-0.1.1.jar"]
}}}
%%
! Registry
Next we need a registry where we can push/pull our images:
{{docker run -d -p 5000:5000 -v /home/metskem/registry:/tmp/registry-dev --name=registry registry}}
Next we tag and push our image:
{{{
➜ testapp1 git:(master) ✗ docker tag testapp1:latest athena:5000/testapp1:0.1.1
➜ testapp1 git:(master) ✗ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
athena:5000/testapp1 0.1.1 66ece7b26ab2 10 minutes ago 165.7 MB
testapp1 latest 66ece7b26ab2 10 minutes ago 165.7 MB
registry latest 182810e6ba8c 4 days ago 37.62 MB
monitoringartist/zabbix-xxl 3.2.3 b7ae522f5534 10 days ago 659.8 MB
----- snip -----
➜ testapp1 git:(master) ✗ docker push athena:5000/testapp1:0.1.1
The push refers to a repository [athena:5000/testapp1]
a634f2e80801: Pushed
f43d53ce4f92: Pushed
501307b47dda: Pushed
0.1.1: digest: sha256:27508c97430484cab6cfe56b4562437d24b4f50d17d9387a39957a6278f57045 size: 952
➜ testapp1 git:(master) ✗
__However__ we need SSL if we want to access this registry remotely. Therefore create keypair first:
{{{
keyfile=/tmp/keyfile.key
certfile=/tmp/certfile.crt
export subj="
C=NL
ST=Overijssel
O=computerhok
localityName=Rijssen
commonName=athena
"
/usr/bin/openssl req -x509 -nodes -newkey rsa:2048 -sha256 -keyout ${keyfile} -days 3650 -out ${certfile} -batch -subj "$(echo -n "$subj" | tr "\n" "/")"
}}}
And then (remove and) restart the registry container with:
{{docker run -d -p 5000:5000 -v /home/metskem/registry:/tmp/registry-dev -v /home/metskem/registry-certs:/certs -e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/certfile.crt -e REGISTRY_HTTP_TLS_KEY=/certs/keyfile.key --name=registry registry}}
Next also edit {{/etc/sysconfig/docker}} on the VirtualBox and add/change {{--insecureegistry=athena:5000}} , after also adding {{10.0.0.164 athena}} to {{etc/hosts}} in the VirtualBox. After that: {{systemctl restart docker}}
Also add the self-signed cert to the VirtualBox (and again restart docker) : {{scp metskem@athena:registry-certs/certfile.crt /etc/docker/certs.d/athena\:5000/ca.crt}}
The above does not help, the admin console keeps saying ''Internal error occurred: Get https://athena:5000/v2/: x509: certificate signed by unknown authority''.
But the oc command says it's fine:
{{{
➜ ~ oc new-app athena:5000/testapp1:0.1.1
--> Found Docker image 66ece7b (50 minutes old) from athena:5000 for "athena:5000/testapp1:0.1.1"
* This image will be deployed in deployment config "testapp1"
* [WARNING] Image "testapp1" runs as the 'root' user which may not be permitted by your cluster administrator
* Port 8080/tcp will be load balanced by service "testapp1"
--> Creating resources with label app=testapp1 ...
DeploymentConfig "testapp1" created
Service "testapp1" created
--> Success
Run 'oc status' to view your app.
}}}
But no, looking at the admin console, we do see our testapp1, but it can't pull the image: {{Failed to pull image "athena:5000/library/testapp1:0.1.1": image pull failed for athena:5000/library/testapp1:0.1.1, this may be because there are no credentials on this request. details: (Error: image library/testapp1 not found)}}
This page (revision-9) was last changed on 23-Apr-2022 17:06 by Harry MetskeTop