Nginx Reverse Proxy (#43)

* Add necessary changes to launch frontend with Docker.

* Add changes to support Docker deployment.

* Provide changes to support devContainers, tasks and launch configurations.

* Add docker compose file and renamed incidence api folder.

* add first version of compose manifest

* Change service names
* Comment out health checks, depends
* Comment out placeholder environment varaibles

* Remove superfluous comments

* Configured settings to be read from envirnonment. There is no need to exclude config and settings files.

* Externalized database properties to be supplied via environment variables.

* remove VS Code related files

* Add quickstart

* Enhanced entry script to check configured datasource is up before starting server.

* add CR

* Added .env_template and added some instructions what to do to get started.

* Minor type for env variable.

* Mime type was incorrect for a /ops/health endpoint recently  added.

* Gruntfile uses _config.json to validate config

* Adjusted dockerfile to do multi stage build to install dependencies and build project.

* Minor cleanup.

* Improved logging to be processed as event stream.

* First version of Jenkinsfile

* Update Jenkinfile with test values

* Fix error in Jenkins file

* Enhance Jenkile file to change to target directory, pull test repository, checkout feature branch and startup application services

* Fixed curly braces in Jenkins file

* Expose traefik dashboard, suppress container restart

* Neeeded changes to account for appended prefix for API calls. (#29)

Co-authored-by: Edwin Cruz <edc7012@cumc.columbia.edu>

* Modify traefik API settings
Expose Traafik API on 8080
Stub out SSH script in Jenkins

* * Change CRLF --> LF to fix error message 'exec user process caused: no such file or directory'
* remove database ping to address ping permission error

* *Change name of traefik container to avoid name collision on deployment server
* Comment in server dependencies

* * Remove unused environment variable
* Comment in healthcheck block
* Remove whitespaces

* Remove healthcheck because it causes the backend routing to fail

* Modify configuration to expose application at a port that will not collide with active HTTP port

* Remove unused environment varaible

* Removed reference to unused environment variable

* Change default constant

* Modify proxy routing to support 127.0.0.1 or configurable host name.

* Add POC version Gitlab CI/CD pipeline

* Use nginx as prxoy

* Change default port exposed by proxy
suppress exposure of fronet end and backend

---------

Co-authored-by: edwincruz <ecruz165@yahoo.com>
Co-authored-by: Edwin Cruz <edc7012@cumc.columbia.edu>
Co-authored-by: Edwin Cruz <edwin@unitedprospects.org>

Author: 4 people

backend-proxy/Dockerfile

@@ -0,0 +1,2 @@
+FROM nginx
+COPY nginx.conf /etc/nginx/nginx.conf

backend-proxy/nginx.conf

@@ -0,0 +1,12 @@
+events {}
+http {
+    server{
+        listen 80;
+        location /api {
+            proxy_pass http://backend:5000/;
+        }
+        location / {
+            proxy_pass http://frontend:80/;
+        }
+    }
+}

client/config.json

@@ -1,4 +1,4 @@
 {
-    "ApiBaseUrl": "http://127.0.0.1:9999/incidence-api",
+    "ApiBaseUrl": "http://127.0.0.1:9999/api/incidence-api",
     "VocabBaseUrl": "http://api.ohdsi.org/WebAPI/vocabulary/1PCT"
 }

docker-compose.yml

@@ -1,59 +1,28 @@
 version: '3'
-
+    
 services:
 
-  traefik:
-    image: docker.io/library/traefik:v2.9.4@sha256:4c388f477f5b7aa48420694d90db0ecb96b4ecede60b9b7589c87858abf87b60
-    container_name: howoften-reverse-proxy
-    restart: unless-stopped
-    ipc: none
-    read_only: true
-    command:
-      - "--log.level=INFO"
-      - "--api"
-      - "--api.insecure=true"
-      - "--providers.docker=true"
-      - "--providers.docker.exposedbydefault=false"
-      - "--entrypoints.web.address=:80"
-    labels:
-      - "traefik.enable=true"
+  backendproxy:
+    build: backend-proxy
+    image: cumc-dbmi/howoften/backendproxy
     ports:
-      - "9999:80"
-      - "8080:8080"
-    volumes:
-      - "/var/run/docker.sock:/var/run/docker.sock:ro"
-  howoften-frontend:
-    container_name: howoften-frontend
-    image: ${ACR_SERVER}/cumc-dbmi/howoften-frontend:latest
-    build: ./client
-    restart: unless-stopped
-    ipc: none
-    privileged: false
-    depends_on:
-      - howoften-backend
-    labels:
-      - "traefik.enable=true"
-      - "traefik.http.routers.howoften-frontend.rule=(Host(`127.0.0.1`) && Path(`/`)) || (Host(`${HOWOFTEN_HOST}`) && PathPrefix(`/`))"
-      - "traefik.http.routers.howoften-frontend.entrypoints=web"
-  howoften-backend:
-    container_name: howoften-backend
-    image: ${ACR_SERVER}/cumc-dbmi/howoften-backend:latest
-    build: ./incidence-api
-    restart: unless-stopped
-    ipc: none
-    read_only: true
-    privileged: false
+    - "9999:80"
+
+  backend:
+    build: incidence-api
+    image: cumc-dbmi/howoften/backend
     environment:
       - DATASOURCE_USERNAME=${DATASOURCE_USERNAME}
       - DATASOURCE_PASSWORD=${DATASOURCE_PASSWORD}
       - DATASOURCE_HOSTNAME=${DATASOURCE_HOSTNAME}
       - DATASOURCE_PORT=${DATASOURCE_PORT}
       - DATASOURCE_SCHEMA=${DATASOURCE_SCHEMA}
       - DATASOURCE_DATABASE=${DATASOURCE_DATABASE}
-    labels:
-      - "traefik.enable=true"
-      - "traefik.http.routers.howoften-backend.rule=(Host(`127.0.0.1`) && Path(`/incidence-api`)) || (Host(`${HOWOFTEN_HOST}`) && PathPrefix(`/incidence-api`))"
-      - "traefik.http.routers.howoften-backend.entrypoints=web"
-      - "traefik.http.services.myapp.loadbalancer.server.port=5000"
-    expose:
-      - 5000
+    # ports:
+    # - "8085:5000"
+
+  frontend:
+    build: client
+    image: cumc-dbmi/howoften/frontend
+    # ports:
+    #  - "80:80"