feat: Add tunnel by default (#4399)

* feat: Add tunnel by default

If an access URL is not specified, we will always tunnel.

This is from community-member feedback who exclaimed that
it's confusing having the default for `coder server` display
a warning message, and I agree.

There is very little (maybe none) in running `coder server`
without tunnel and without an access URL, so this seems like
overall a much better UX.

* Update install.sh

Co-authored-by: Ben Potter <ben@coder.com>

* Update docs/install/packages.md

Co-authored-by: Ben Potter <ben@coder.com>

* Fix reset pass test

* Fix e2e test

Co-authored-by: Ben Potter <ben@coder.com>

docs/install/binary.md

@@ -15,7 +15,7 @@ Coder publishes self-contained .zip and .tar.gz archives in [GitHub releases](ht
 
    ```sh
    # Automatically sets up an external access URL on *.try.coder.app
-   coder server --tunnel
+   coder server
 
    # Requires a PostgreSQL instance and external access URL
    coder server --postgres-url <url> --access-url <url>

docs/install/docker.md

@@ -4,7 +4,7 @@ You can install and run Coder using the official Docker images published on [Git
 
 Docker is required. See the [official installation documentation](https://docs.docker.com/install/).
 
-## Run Coder with built-in database and tunnel (quick)
+## Run Coder with the built-in database (quick)
 
 For proof-of-concept deployments, you can run a complete Coder instance with
 the following command:
@@ -14,7 +14,6 @@ export CODER_DATA=$HOME/.config/coderv2-docker
 export DOCKER_GROUP=$(getent group docker | cut -d: -f3)
 mkdir -p $CODER_DATA
 docker run --rm -it \
-  -e CODER_TUNNEL=true \
   -v $CODER_DATA:/home/coder/.config \
   -v /var/run/docker.sock:/var/run/docker.sock \
   --group-add $DOCKER_GROUP \
@@ -68,7 +67,7 @@ an PostgreSQL container and volume.
    ```sh
    cd coder
 
-   CODER_TUNNEL=true docker-compose up
+   docker-compose up
    ```
 
    For production deployments, we recommend setting an [access URL](../admin/configure.md#access-url):
@@ -79,8 +78,6 @@ an PostgreSQL container and volume.
    CODER_ACCESS_URL=https://coder.example.com docker-compose up
    ```
 
-   > Without `CODER_ACCESS_URL` or `CODER_TUNNEL` set, Coder will bind to `localhost:7080`. This will only work for Docker-based templates.
-
 4. Visit the web ui via the configured url. You can add `/login` to the base url to create the first user via the ui.
 
 5. Follow the on-screen instructions log in and create your first template and workspace

docs/install/packages.md

@@ -7,7 +7,7 @@
 1. Run Coder as a system service.
 
    ```sh
-   # Set up an access URL or enable CODER_TUNNEL
+   # Optional) Set up an access URL
    sudo vim /etc/coder.d/coder.env
 
    # To systemd to start Coder now and on reboot