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This article is provided as a technical guide to set up Joget DX |
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8 with PostgreSQL database on Kubernetes. |
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The following steps were implemented on Ubuntu |
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22.04, please modify the commands to suit your environment. |
Create Joget Image with PostgreSQL JDBC Driver
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# create custom Dockerfile
cat <<EOF > joget-dx7dx8-postgresql-tomcat9.Dockerfile
FROM jogetworkflow/joget-dx7dx8-tomcat9:78.01.141
# Copy postgresql jdbc driver (download from https://jdbc.postgresql.org/download/postgresql-42.27.193.jar)
COPY postgresql-42.27.193.jar /deployments/apache-tomcat/lib/postgresql-42.27.193.jar
EOF
# build docker image
docker build -f joget-dx7dx8-postgresql-tomcat9.Dockerfile --rm -t quay.io/replaceWithYourAccount/joget-dx7dx8-postgresql-tomcat9:78.01.141 .
# push docker image
docker push quay.io/replaceWithYourAccount/joget-dx7dx8-postgresql-tomcat9:78.01.141 |
Deploy PostgreSQL on K8s using Helm
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# deploy postgresql using Helm
helm repoinstall addpostgres bitnami httpsoci://chartsregistry-1.bitnamidocker.com/bitnami
helm install postgres bitnamiio/bitnamicharts/postgresql
helm list
helm get notes postgres
# wait for postgresql to startup
kubectl wait \
--for=condition=ready pod \
--selector=app.kubernetes.io/name=postgresql \
--timeout=180s |
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# check setfor postgresql password
export POSTGRES_PASSWORD=$(kubectl get secret --namespace default postgres-postgresql -o jsonpath="{.data.postgresql-password}" | base64 --decode)
# run psql
kubectl run postgres-postgresql-client --rm --tty -i --restart='Never' --namespace default --image docker.io/bitnami/postgresql:1116.113.0-debian-1012-r24r4 --env="PGPASSWORD=$POSTGRES_PASSWORD" \
--command -- psql --host postgres-postgresql -U postgres -d postgres -p 5432
$ CREATE DATABASE jwdb;
$ \quit |
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Obtain the pgsql file from Configure for PostgreSQL.
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# import sql
cat jwdb-postgresql-dx7postgres.pgsqlsql | kubectl exec -i postgres-postgresql-0 -- env PGPASSWORD=$POSTGRES_PASSWORD psql -U postgres -d jwdb |
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Follow the instructions in https://dev.joget.org/community/display/DX7dx8/Joget+on+Kubernetes, replacing the jogetworkflow/joget-dx7dx8-tomcat9 image with the custom image quay.io/replaceWithYourAccount/joget-dx7dx8-postgresql-tomcat9 in the YAML
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# ssh into tomcat pod and create datasource files
kubectl exec --stdin --tty deployments/joget-dx7dx8-tomcat9 -- /bin/bash
$ cat <<EOF > /opt/joget/wflow/app_datasource-postgresql.properties
workflowUser=postgres
workflowPassword=REPLACE_POSTGRES_PASSWORD_HERE
workflowDriver=org.postgresql.Driver
workflowUrl=jdbc\:postgresql\://postgres-postgresql/jwdb
EOF
$ cat <<EOF > /opt/joget/wflow/app_datasource.properties
currentProfile=postgresql
EOF
$ exit |
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# restart pods
kubectl scale --replicas=0 deployment/joget-dx7dx8-tomcat9
kubectl scale --replicas=1 deployment/joget-dx7dx8-tomcat9
# view logs
kubectl logs -f deployment/joget-dx7dx8-tomcat9 |