Sometimes things don't work the way they should. Here are some tips on debugging issues out
in production.
## Mail not working
## Starting a Rails console
A common problem is that mails are not being sent for some reason. Suppose you configured
an SMTP server, but you're not seeing mail delivered. Here's how to check the settings:
Troubleshooting and debugging often requires a rails console.
1. Run a Rails console:
**For Omnibus installations**
```shell
sudo gitlab-rails console -e production
```
```shell
sudo gitlab-rails console
```
or for source installs:
---
```shell
bundle exec rails console -e production
```
**For installations from source**
```shell
bundle exec rails console production
```
Kubernetes: the console is in the task-runner pod, refer to our [Kubernetes cheat sheet](kubernetes_cheat_sheet.md#gitlab-specific-kubernetes-information) for details.
## Mail not working
A common problem is that mails are not being sent for some reason. Suppose you configured
an SMTP server, but you're not seeing mail delivered. Here's how to check the settings:
1. Run a [Rails console.](#starting-a-rails-console)
1. Look at the ActionMailer `delivery_method` to make sure it matches what you
intended. If you configured SMTP, it should say `:smtp`. If you're using
...
...
@@ -160,22 +170,17 @@ separate Rails process to debug the issue:
1. Log in to your GitLab account.
1. Copy the URL that is causing problems (e.g. `https://gitlab.com/ABC`).
1. Create a Personal Access Token for your user (Profile Settings -> Access Tokens).
1. Bring up the GitLab Rails console. For omnibus users, run:
```shell
sudo gitlab-rails console
```
1. Bring up the [GitLab Rails console.](#starting-a-rails-console)
1. At the Rails console, run:
```ruby
[1]pry(main)>app.get'<URL FROM STEP 2>/?private_token=<TOKEN FROM STEP 3>'
app.get'<URL FROM STEP 2>/?private_token=<TOKEN FROM STEP 3>'
The [Security Scanner Integration](../../../development/integrations/secure.md) documentation explains how to integrate other security scanners into GitLab.
## Use cases
If you distribute your application with Docker, then there's a great chance
| Go ([Go Modules](https://github.com/golang/go/wiki/Modules)) | yes ([alpha](https://gitlab.com/gitlab-org/gitlab/issues/7132)) | [gemnasium](https://gitlab.com/gitlab-org/security-products/gemnasium) |
## Contribute your scanner
The [Security Scanner Integration](../../../development/integrations/secure.md) documentation explains how to integrate other security scanners into GitLab.
## Configuration
For GitLab 11.9 and later, to enable Dependency Scanning, you must
[Grails](https://grails.org/) and the [Maven wrapper](https://github.com/takari/maven-wrapper).
## Contribute your scanner
The [Security Scanner Integration](../../../development/integrations/secure.md) documentation explains how to integrate other security scanners into GitLab.
