Deploying Miniflux on OpenShift

Published on linkContainers labelOpenShift labelMiniflux schedule2 minutes

Miniflux is a minimalist, open source and opinionated RSS feed reader. There is a hosted instance available at a fair price point but wouldn’t it be cooler to host your own instance on your OpenShift cluster? Let’s do it!

Create a new project.

oc new-project miniflux --display-name=Miniflux

Provision a PostgreSQL database instance, as required by Miniflux.

oc new-app --name=postgresql --template=postgresql-persistent \
           -p POSTGRESQL_USER=miniflux \
           -p POSTGRESQL_PASSWORD=miniflux \
           -p POSTGRESQL_DATABASE=miniflux

Because the database needs to be initialized with the hstore extension enabled, we need to create an initialization script for our PostgreSQL instance.

cat <<"EOF" > start.sh
echo ">>> Starting database schema creation"
set +e
psql $POSTGRESQL_DATABASE -c 'create extension hstore'
set -e
echo "<<< Finished database schema creation"
EOF

Provision the initialization script as a Config Map and mount it on the PostgreSQL pod in /opt/app-root/src/postgresql-start.

oc create configmap postgresql-init --from-file=start.sh
oc set volume dc/postgresql --add -t configmap --name postgresql-init \
                            --configmap-name=postgresql-init \
                            -m /opt/app-root/src/postgresql-start

Because of a bug feature in the PostgreSQL base image (see #351), we need to hack a little bit the PostgreSQL image.

cat <<"EOF" > /tmp/common.sh
#!/bin/bash

export CONTAINER_SCRIPTS_PATH=/usr/share/container-scripts/postgresql
. /usr/share/container-scripts/postgresql/common.sh

# Replace the get_matched_files function from common.sh
# with a patched version that fixes #351
get_matched_files ()
{
  local pattern=$1 dir
  shift
  for dir; do
    test -d "$dir" || continue
    # see https://github.com/sclorg/postgresql-container/issues/351
    find -L "$dir" -maxdepth 1 -type f -name "$pattern" -printf "%f\n"
  done
}
EOF

oc create configmap postgresql-hack --from-file=/tmp/common.sh
oc set volume dc/postgresql --add -t configmap --name postgresql-hack \
                            --configmap-name=postgresql-hack \
                            -m /opt/custom
oc set env dc/postgresql CONTAINER_SCRIPTS_PATH=/opt/custom

Deploy Miniflux.

oc new-app --name=miniflux --docker-image=miniflux/miniflux:latest \
           -e 'DATABASE_URL=postgres://miniflux:miniflux@postgresql/miniflux?sslmode=disable' \
           -e RUN_MIGRATIONS=1 -e CREATE_ADMIN=1

Choose a login and a password for the first Miniflux user.

oc create secret generic miniflux --from-literal=username=admin --from-literal=password=secret
oc set env dc/miniflux --from=secret/miniflux --prefix=ADMIN_

Create a route to expose Miniflux.

oc expose svc/miniflux