Add postgres docker support

Not tested yet as the current postgres dump is incompatible with the
application. We need to fix ourselve to one schema and stick to it for
whatever database backend we support.

deploy/.env

@@ -1,2 +1,3 @@
 PANTSU_EXTERNAL_PORT=9999
 PANTSU_INTERNAL_PORT=9999
+PANTSU_POSTGRES_DBFILE=nyaa_psql.backup

deploy/docker-compose.postgres.yml

@@ -0,0 +1,34 @@
+version: '3'
+services:
+  pantsu:
+    build:
+      context: ..
+      dockerfile: deploy/Dockerfile
+    command: ./deploy/init.sh
+    depends_on: 
+      - pantsu_db
+    env_file:
+      - postgres.env
+    environment:
+      - PANTSU_INTERNAL_PORT=${PANTSU_INTERNAL_PORT}
+    links:
+      - pantsu_db
+    ports:
+      # 0.0.0.0 makes it accessible to the network
+      # You may want to remove it to make pantsu available only
+      # to localhost
+      - 0.0.0.0:${PANTSU_EXTERNAL_PORT}:${PANTSU_INTERNAL_PORT}
+    volumes:
+      - "${GOPATH}:/go/"
+      - "./..:/nyaa"
+
+  pantsu_db:
+    env_file:
+      - postgres.env
+    environment:
+      - PANTSU_POSTGRES_DBFILE=${PANTSU_POSTGRES_DBFILE}
+    image: postgres:9.6.2
+    volumes:
+      # restore.sh will be sourced after initial initdb
+      - "./restore.sh:/docker-entrypoint-initdb.d/restore.sh"
+      - "./../${PANTSU_POSTGRES_DBFILE}:/${PANTSU_POSTGRES_DBFILE}"

deploy/postgres.env

@@ -1,7 +1,6 @@
-POSTGRES_USER="nyaapantsu"
-POSTGRES_PASSWORD="nyaapantsu"
-POSTGRES_DB="nyaa_db"
+POSTGRES_USER=nyaapantsu
+POSTGRES_PASSWORD=nyaapantsu
+POSTGRES_DB=nyaapantsu
 
-PANTSU_DBTYPE="postgres"
-PANTSU_DBPARAMS="host=pantsu_db user=${POSTGRES_USER} dbname=${POSTGRES_DB} sslmode=disable password=${POSTGRES_PASSWORD}"
-PANTSU_POSTGRES_DBFILE="nyaa_psql.backup"
+PANTSU_DBTYPE=postgres
+PANTSU_DBPARAMS=host=pantsu_db user=${POSTGRES_USER} dbname=${POSTGRES_DB} sslmode=disable password=${POSTGRES_PASSWORD}

deploy/restore.sh

@@ -1,3 +1,4 @@
 #!/bin/bash
+# Restore the database from a postgres dump
 
-psql -v ON_ERROR_STOP=1 --username "${POSTGRES_USER}" < "${PANTSU_POSTGRES_DBFILE}"
+pg_restore --username "${POSTGRES_USER}" -d ${POSTGRES_DB} "/${PANTSU_POSTGRES_DBFILE}"