dokku-mailcatcher-create.sh

#/bin/bash

# Fail on first error
set -e

APP=${1?dokku app name required}
MAILCATCHER_APP=mailcatcher-${APP}
MAILCATCHER_APP_DOCKER_NAME=${MAILCATCHER_APP}.web.1
MAILCATCHER_HOST=${MAILCATCHER_APP}
MAILCATCHER_SMTP_PORT=1025
MAILCATCHER_SMTP_URL=smtp://${MAILCATCHER_HOST}:${MAILCATCHER_SMTP_PORT}

echo "Pulling mailcatcher image from docker registry"
docker pull schickling/mailcatcher

echo "Ensure that app exists"
dokku apps:report ${APP}

echo "Crete dokku app for mailcatcher"
dokku apps:create ${MAILCATCHER_APP}

echo "Tagging docker image with mailcatcher app tag"
docker tag schickling/mailcatcher:latest dokku/${MAILCATCHER_APP}:latest

echo "Configure mailcatcher port map"
dokku config:set ${MAILCATCHER_APP} DOKKU_PROXY_PORT_MAP="http:80:1080"

echo "Deploying mailcatcher app"
dokku tags:deploy ${MAILCATCHER_APP} latest

echo "Link app container with mailcatcher container"
dokku docker-options:add ${APP} deploy "--link ${MAILCATCHER_APP_DOCKER_NAME}:${MAILCATCHER_HOST}" 
dokku docker-options:add ${APP} run "--link ${MAILCATCHER_APP_DOCKER_NAME}:${MAILCATCHER_HOST}"

echo "Setting SMTP_URL environment variable"
dokku config:set ${APP} SMTP_URL=${MAILCATCHER_SMTP_URL}

Thanks for this!

I think the proxy port map is incorrect though. The mailcatcher dockerfile exposes port 1080.

So the Configure mailcatcher port map line should actually be:

dokku config:set ${MAILCATCHER_APP} DOKKU_PROXY_PORT_MAP="http:1080:1080"