Instructions on using HTTPS

CHANGELOG.md

@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Button to reset colors settings (brightness, saturation, contrast) in the new UI
 - Option to display shape text always
 - Dedicated message with clarifications when share is unmounted (https://github.com/opencv/cvat/pull/1373)
+- Tutorial: instructions for CVAT over HTTPS
 
 ### Changed
 - Increase preview size of a task till 256, 256 on the server

cvat/apps/documentation/installation.md

@@ -7,6 +7,7 @@
     - [Stop all containers](#stop-all-containers)
     - [Advanced settings](#advanced-settings)
     - [Share path](#share-path)
+	- [Serving over HTTPS](#serving-over-https)
 
 # Quick installation guide
 
@@ -306,3 +307,299 @@ volumes:
 You can change the share device path to your actual share. For user convenience
 we have defined the environment variable $CVAT_SHARE_URL. This variable
 contains a text (url for example) which is shown in the client-share browser.
+
+### Serving over HTTPS
+
+We will add [letsencrypt.org](https://letsencrypt.org/) issued certificate to secure
+our server connection. 
+
+#### Prerequisites
+
+We assume that 
+
+-   you have sudo access on your server machine, 
+-   you have an IP address to use for remote access, and
+-   that the local CVAT installation works on your server.
+
+If this is not the case, please complete the steps in the installation manual first.
+
+#### Roadmap
+
+We will go through the following sequence of steps to get CVAT over HTTPS:
+
+- Move Docker Compose CVAT access port to 80/tcp.
+- Configure Nginx to pass one of the [ACME challenges](https://letsencrypt.org/docs/challenge-types/).
+- Create the certificate files using [acme.sh](https://github.com/acmesh-official/acme.sh).
+- Reconfigure Nginx to serve over HTTPS and map CVAT to Docker Compose port 443.
+
+#### Step-by-step instructions
+
+##### 1. Move the CVAT access port
+
+Let's assume the server will be at `my-cvat-server.org`. 
+
+```bash
+# on the server
+docker-compose down
+
+# add docker-compose.override.yml as per instructions below
+
+docker-compose up -d
+```
+
+Add the following into your `docker-compose.override.yml`, replacing `my-cvat-server.org` with your own IP address.
+This file lives in the same directory as `docker-compose.yml`.
+
+```yaml
+# docker-compose.override.yml 
+version: "2.3"
+
+services:
+  cvat_proxy:
+    environment:
+      CVAT_HOST: my-cvat-server.org
+    ports:
+    - "80:80"
+
+  cvat:
+    environment:
+      ALLOWED_HOSTS: '*'
+```
+
+You should now see an unsecured version of CVAT at `http://my-cvat-server.org`.
+
+##### 2. Configure Nginx for the ACME challenge
+
+Temporarily, enable serving `http://my-cvat-server.org/.well-known/acme-challenge/` 
+route from `/letsencrypt` directory on the server's filesystem. 
+You can use the [Nginx quickstart guide](http://nginx.org/en/docs/beginners_guide.html) for reference.
+
+```bash
+# cvat_proxy/conf.d/cvat.conf.template
+
+server {
+    listen       80;
+    server_name  _ default;
+    return       404;
+}
+
+server {
+    listen       80;
+    server_name  ${CVAT_HOST};
+
+    # add this temporarily, to pass an acme challenge
+    location ^~ /.well-known/acme-challenge/ {
+      allow all;
+      root /letsencrypt;
+    }
+
+    location ~* /api/.*|git/.*|tensorflow/.*|auto_annotation/.*|analytics/.*|static/.*|admin|admin/.*|documentation/.*|dextr/.*|reid/.*  {
+        proxy_pass              http://cvat:8080;
+        proxy_pass_header       X-CSRFToken;
+        proxy_set_header        Host $http_host;
+        proxy_pass_header       Set-Cookie;
+    }
+
+    location / {
+        # workaround for match location by arguments
+        error_page 418 = @annotation_ui;
+
+        if ( $query_string ~ "^id=\d+.*" ) { return 418; }
+
+        proxy_pass              http://cvat_ui;
+        proxy_pass_header       X-CSRFToken;
+        proxy_set_header        Host $http_host;
+        proxy_pass_header       Set-Cookie;
+    }
+
+    # old annotation ui, will be removed in the future.
+    location @annotation_ui {
+        proxy_pass              http://cvat:8080;
+        proxy_pass_header       X-CSRFToken;
+        proxy_set_header        Host $http_host;
+        proxy_pass_header       Set-Cookie;
+    }
+}
+```
+
+Now create the `/letsencrypt` directory and mount it into `cvat_proxy` container.
+Edit your `docker-compose.override.yml` to look like the following:
+
+```yaml
+# docker-compose.override.yml 
+version: "2.3"
+
+services:
+  cvat_proxy:
+    environment:
+      CVAT_HOST: my-cvat-server.org
+    ports:
+    - "80:80"
+    volumes:
+    - ./letsencrypt:/letsencrypt
+
+  cvat:
+    environment:
+      ALLOWED_HOSTS: '*'
+```
+
+Finally, create the directory and restart CVAT.
+
+```bash
+# in the same directory where docker-compose.override.yml lives
+mkdir -p letsencrypt/.well-known/acme-challenge
+
+docker-compose down
+docker-compose up -d
+```
+
+Your server should still be visible (and unsecured) at `http://my-cvat-server.org` 
+but you won't see any behavior changes.
+
+##### 3. Create certificate files using an ACME challenge
+
+At this point your deployment is running.
+
+```bash
+admin@tempVM:~/cvat$ docker ps
+CONTAINER ID        IMAGE                 COMMAND                  CREATED              STATUS              PORTS                                      NAMES
+0a35cd127968        nginx:stable-alpine   "/bin/sh -c 'envsubs…"   About a minute ago   Up About a minute   0.0.0.0:80->80/tcp, 0.0.0.0:8080->80/tcp   cvat_proxy
+b85497c44836        cvat_cvat_ui          "nginx -g 'daemon of…"   About a minute ago   Up About a minute   80/tcp                                     cvat_ui
+d25a00475849        cvat                  "/usr/bin/supervisord"   About a minute ago   Up About a minute   8080/tcp, 8443/tcp                         cvat
+6353a43f55c3        redis:4.0-alpine      "docker-entrypoint.s…"   About a minute ago   Up About a minute   6379/tcp                                   cvat_redis
+52009636caa8        postgres:10-alpine    "docker-entrypoint.s…"   About a minute ago   Up About a minute   5432/tcp                                   cvat_db
+```
+
+We will attach `cvat_proxy` container to run `acme.sh` scripts.
+
+```bash
+admin@tempVM:~/cvat$ docker exec -ti cvat_proxy /bin/sh
+
+# install some missing software inside cvat_proxy
+/ # apk add openssl curl
+/ # curl https://get.acme.sh | sh
+/ # ~/.acme.sh/acme.sh -h
+[... many lines ...]
+
+/ # ~/.acme.sh/acme.sh --issue -d my-cvat-server.org -w /letsencrypt
+[Fri Apr  3 20:49:05 UTC 2020] Create account key ok.
+[Fri Apr  3 20:49:05 UTC 2020] Registering account
+[Fri Apr  3 20:49:06 UTC 2020] Registered
+[Fri Apr  3 20:49:06 UTC 2020] ACCOUNT_THUMBPRINT='tril8-LdJgM8xg6mnN1pMa7vIMdFizVCE0NImNmyZY4'
+[Fri Apr  3 20:49:06 UTC 2020] Creating domain key
+[ ... many more lines ...]
+[Fri Apr  3 20:49:10 UTC 2020] Your cert is in  /root/.acme.sh/my-cvat-server.org/my-cvat-server.org.cer 
+[Fri Apr  3 20:49:10 UTC 2020] Your cert key is in  /root/.acme.sh/my-cvat-server.org/my-cvat-server.org.key 
+[Fri Apr  3 20:49:10 UTC 2020] The intermediate CA cert is in  /root/.acme.sh/my-cvat-server.org/ca.cer 
+[Fri Apr  3 20:49:10 UTC 2020] And the full chain certs is there:  /root/.acme.sh/my-cvat-server.org/fullchain.cer 
+
+/ # cp ~/.acme.sh/my-cvat-server.org/my-cvat-server.org.cer /letsencrypt/certificate.cer
+/ # cp ~/.acme.sh/my-cvat-server.org/my-cvat-server.org.key /letsencrypt/certificate.key
+/ # cp ~/.acme.sh/my-cvat-server.org/ca.cer /letsencrypt/ca.cer
+/ # cp ~/.acme.sh/my-cvat-server.org/fullchain.cer /letsencrypt/fullchain.cer
+/ # exit
+admin@tempVM:~/cvat$ ls letsencrypt/
+ca.cer  certificate.cer  certificate.key  fullchain.cer
+admin@tempVM:~/cvat$ mkdir cert
+admin@tempVM:~/cvat$ mv letsencrypt/* ./cert
+```
+
+##### 4. Reconfigure Nginx for HTTPS access
+
+Update Docker Compose configuration to mount the certificate directory.
+
+```yml
+# docker-compose.override.yml
+version: "2.3"
+
+services:
+  cvat_proxy:
+    environment:
+      CVAT_HOST: my-cvat-server.org
+    ports:
+    - "443:443"
+    volumes:
+    - ./letsencrypt:/letsencrypt
+    - ./cert:/cert:ro # this is new
+
+  cvat:
+    environment:
+      ALLOWED_HOSTS: '*'
+```
+
+Also, reconfigure Nginx to use `443/tcp` and point it to the new keys.
+
+```bash
+server {
+    listen       80;
+    server_name  _ default;
+    return       404;
+}
+
+server {
+    listen       443 ssl;
+    server_name  ${CVAT_HOST};
+    ssl_certificate /cert/certificate.cer;
+    ssl_certificate_key /cert/certificate.key;
+
+    location ~* /api/.*|git/.*|tensorflow/.*|auto_annotation/.*|analytics/.*|static/.*|admin|admin/.*|documentation/.*|dextr/.*|reid/.*  {
+        proxy_pass              http://cvat:8080;
+        proxy_pass_header       X-CSRFToken;
+        proxy_set_header        Host $http_host;
+        proxy_pass_header       Set-Cookie;
+    }
+
+    location / {
+        # workaround for match location by arguments
+        error_page 418 = @annotation_ui;
+
+        if ( $query_string ~ "^id=\d+.*" ) { return 418; }
+
+        proxy_pass              http://cvat_ui;
+        proxy_pass_header       X-CSRFToken;
+        proxy_set_header        Host $http_host;
+        proxy_pass_header       Set-Cookie;
+    }
+
+    # old annotation ui, will be removed in the future.
+    location @annotation_ui {
+        proxy_pass              http://cvat:8080;
+        proxy_pass_header       X-CSRFToken;
+        proxy_set_header        Host $http_host;
+        proxy_pass_header       Set-Cookie;
+    }
+}
+```
+
+Finally, restart your service.
+
+```bash
+admin@tempVM:~/cvat$ docker-compose down
+Stopping cvat_proxy ... done
+Stopping cvat_ui    ... done
+Stopping cvat       ... done
+Stopping cvat_db    ... done
+Stopping cvat_redis ... done
+Removing cvat_proxy ... done
+Removing cvat_ui    ... done
+Removing cvat       ... done
+Removing cvat_db    ... done
+Removing cvat_redis ... done
+Removing network cvat_default
+admin@tempVM:~/cvat$ docker-compose up -d
+Creating network "cvat_default" with the default driver
+Creating cvat_db    ... done
+Creating cvat_redis ... done
+Creating cvat       ... done
+Creating cvat_ui    ... done
+Creating cvat_proxy ... done
+admin@tempVM:~/cvat$ docker ps
+CONTAINER ID        IMAGE                 COMMAND                  CREATED              STATUS              PORTS                                        NAMES
+71464aeac87c        nginx:stable-alpine   "/bin/sh -c 'envsubs…"   About a minute ago   Up About a minute   0.0.0.0:443->443/tcp, 0.0.0.0:8080->80/tcp   cvat_proxy
+8428cfbb766e        cvat_cvat_ui          "nginx -g 'daemon of…"   About a minute ago   Up About a minute   80/tcp                                       cvat_ui
+b5a2f78689da        cvat                  "/usr/bin/supervisord"   About a minute ago   Up About a minute   8080/tcp, 8443/tcp                           cvat
+ef4a1f47440f        redis:4.0-alpine      "docker-entrypoint.s…"   About a minute ago   Up About a minute   6379/tcp                                     cvat_redis
+7803bf828d9f        postgres:10-alpine    "docker-entrypoint.s…"   About a minute ago   Up About a minute   5432/tcp                                     cvat_db
+```
+
+Now you can go to `https://my-cvat-server.org/` and verify that you are using an encrypted connection.