Feat/fireflyiii (#344)

* Adding Firefly-iii opt fragment

* Adding environment variable to force creation of db

* Instructing postgres to create database

* Switching exposing default port, running create db command

* Remove grep command for postgres container

* Removing database creation on postgres container start

* Adding required App Key env variable

* Updating nginx rewriting

* Updating firefly nginx confugration traying to make it work with subdirectory

https://github.com/firefly-iii/firefly-iii/issues/2848#issuecomment-557845301

* Trying to rewrite

* Reconfiguring nginx to pass headers

* Updating docker fragment

* Last try

* Allowing firefly iii to be hosted on other domain

* Fixing docker compose env variables

* Exposing ports for external communication

* Ports exposing

* Updating firefly host reference

* Matching service name and VIRTUAL_HOST_NAME

* Getting nginx to redirect to port 8080

* update and adapt

* Adapt firefly to be with dedicated domain

* Adapt Docker file builder to support non github builds

* Make firefly init create db only if not exists + run full recommended upgrade procedure

Co-authored-by: rockstardev <rockstardev@users.noreply.github.com>

docker-compose-generator/docker-fragments/opt-add-fireflyiii.yml

@@ -0,0 +1,32 @@
+version: '3'
+
+services:
+  fireflyiii:
+    image: fireflyiii/core:latest
+    environment:
+      - APP_ENV=local
+      - APP_KEY=MustBe32DropDbAndChangeItIfUWant
+      - APP_URL=http://${FIREFLY_HOST}
+      - TRUSTED_PROXIES=**
+      - DB_CONNECTION=pgsql
+      - DB_HOST=postgres
+      - DB_PORT=5432
+      - DB_DATABASE=fireflyiii
+      - DB_USERNAME=postgres
+      - DB_PASSWORD=
+      - VIRTUAL_HOST_NAME=fireflyiii
+      - VIRTUAL_HOST=${FIREFLY_HOST}
+      - VIRTUAL_PORT=8080
+      - LETSENCRYPT_HOST=${FIREFLY_HOST}
+      - LETSENCRYPT_EMAIL=${LETSENCRYPT_EMAIL:-<no value>}
+    expose:
+      - 8080
+    volumes:
+      - firefly_iii_export:/var/www/firefly-iii/storage/export
+      - firefly_iii_upload:/var/www/firefly-iii/storage/upload
+    depends_on:
+      - postgres
+ 
+volumes:
+   firefly_iii_export:
+   firefly_iii_upload: