[WIP] Create Dockerfile for Hets (Server) (#1868)

* Add a basic Dockerfile

* Update the packages installed with Docker

* Fix the package sources and binary name for Docker setup

* Update Dockerfile to use Ubuntu 18.04 and remove the ppa workaround

* Ignore Hets-lib in Docker directory

* Create a docker compose setup for hets server

* WIP Hets connection to database in Docker

* Container now correctly addresses database

* Remvoe workaround for Hets-Libs

* Temporarily remove of Postgres bind mount

* Container now in correct network configuration

* Fix typo in database configuration

* Hets is now a standalone container

* Removes comment

* Use /data/ as the working directory

* Add a workaround for the new hets-server binary (2019-06-19)

* Clean-up of unused docker files

* Use docker secret to persist postgres password

* Remove Workaround for old hets binary and use dynamic IP address for
hostnames

* Use a docker volume instead of a bind mount for persistend postgres data

* Remove whitespace in gitignore

Docker/Dockerfile

@@ -0,0 +1,17 @@
+FROM ubuntu:18.04
+
+ENV LANG C.UTF-8
+
+RUN apt-get update && apt-get install software-properties-common -y
+RUN apt-add-repository ppa:hets/hets
+RUN apt-get update && apt-get install -y hets-server hets-libs libatomic1 && rm -rf /var/lib/apt/lists/*
+
+RUN mkdir /data/
+
+WORKDIR /data/
+
+COPY docker-entrypoint.sh /usr/local/bin/
+
+ENTRYPOINT [ "/usr/local/bin/docker-entrypoint.sh" ]
+
+CMD ["hets-server", "--server"]

Docker/docker-compose.yml

@@ -0,0 +1,52 @@
+version: '3.7'
+services:
+  hets:
+    image: spechub2/hets:latest
+    command: hets-server --server --database-config=/etc/hets_db_postgresql.yml --database-subconfig=production
+    ports:
+      - "8000:8000"
+    environment:
+      POSTGRES_HOST: db_postgresql
+      POSTGRES_PASSWORD: /run/secrets/db_password
+      POSTGRES_PORT: 5432
+      POSTGRES_USERNAME: /run/secrets/db_username
+    volumes:
+      - type: bind
+        source: ./hets_data/
+        target: /data/
+        read_only: true
+    networks:
+      db:
+    secrets:
+      - db_password
+      - db_username
+  db_postgresql:
+    image: "postgres:11-alpine"
+    environment:
+      POSTGRES_DB: hets
+      POSTGRES_PASSWORD_FILE: /run/secrets/db_password
+    expose:
+      - "5432"
+    networks:
+      db:
+    volumes:
+      - type: volume
+        source: postgres_data
+        target: /var/lib/postgresql/data/
+    secrets:
+      - db_password
+
+networks:
+  db:
+    driver: "bridge"
+    ipam:
+      driver: default
+
+secrets:
+  db_password:
+    file: ./secrets/db_password.txt
+  db_username:
+    file: ./secrets/db_username.txt
+
+volumes:
+  postgres_data:

Docker/docker-entrypoint.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+if [ "$1" = 'hets-server' ] && [ "$3" = "--database-config=/etc/hets_db_postgresql.yml" ]; then
+    echo "default: &default
+  adapter: postgresql
+  username: $(cat $POSTGRES_USERNAME)
+  password: $(cat $POSTGRES_PASSWORD)
+  host: $POSTGRES_HOST
+  port: $POSTGRES_PORT
+  pool: 10
+
+production:
+  <<: *default
+  database: hets" > /etc/hets_db_postgresql.yml
+fi
+
+exec "$@"