Configure password less login for hammer command line tool.

Environment

• Red Hat Satellite 6

Issue

• Each time hammer command is invoked in Satellite terminal, it asks for username and password:

  sat [~/.hammer] # hammer organization list
  [Foreman] Username: admin
  
  [Foreman] Password for admin: 
  

- How to configure the hammer client on Satellite 6 not to prompt for username and password?

- Can hammer client be configured to avoid asking user/password every time it is executed?

- Hammer command line management tool asks for password each time the command is invoked.

- Even after making required changes in `/etc/foreman-maintain/foreman-maintain.yml` file, the hammer command still fails with error `Invalid Username and Password`.


## Resolution

- In order to skip username and password check **for Satellite 6.2 and earlier**, create the directory `~/.hammer` and then create a `cli_config.yml` file in the directory, adding the following content to the file:
Put the following values inside the file:

   <pre>
   :foreman:
    :host: 'https://satellite.example.com'
    :username: 'admin'
    :password: 'password'
  </pre>

- **For Satellite 6.3 and later**, if you ran the Satellite installation with the `--foreman-admin-username` and `--foreman-admin-password` options, the credentials you entered are stored in the `~/.hammer/cli.modules.d/foreman.yml` configuration file, and hammer does not prompt for your credentials.
You can also add your credentials manually to the `~/.hammer/cli.modules.d/foreman.yml` configuration file:

   <pre>
   :foreman:
    :username: 'admin'
    :password: 'password'
  </pre>

**Important Notes:**

- When creating a YAML file (e.g. `cli_config.yml`) follow these rules:

  - Tabs are not allowed (use spaces only).

  - The properties MUST be indented (host, username, password) with 1 or more spaces. If indenting `:host:` by one space, then all the other properties must be indented by one space as well.

  - If these rules are not followed, the following error message will be displayed:


    ```
    sat [~/.hammer] # hammer organization list
    /usr/share/ruby/psych.rb:205:in `parse': (<unknown>): did not find expected key while parsing a block mapping at line 3 column 2 (Psych::SyntaxError)
        from /usr/share/ruby/psych.rb:205:in `parse_stream'
        from /usr/share/ruby/psych.rb:153:in `parse'
        from /usr/share/ruby/psych.rb:129:in `load'
        from /usr/share/gems/gems/hammer_cli-0.1.4.11/lib/hammer_cli/settings.rb:38:in `load_from_file'
        from /usr/share/gems/gems/hammer_cli-0.1.4.11/lib/hammer_cli/settings.rb:22:in `block in load_from_paths'
        from /usr/share/gems/gems/hammer_cli-0.1.4.11/lib/hammer_cli/settings.rb:16:in `each'
        from /usr/share/gems/gems/hammer_cli-0.1.4.11/lib/hammer_cli/settings.rb:16:in `load_from_paths'
        from /usr/share/gems/gems/hammer_cli-0.1.4.11/bin/hammer:40:in `<top (required)>'
        from /usr/bin/hammer:23:in `load'
        from /usr/bin/hammer:23:in `<main>'
    ```


- Please note that:
- The credentials stored in `~/.hammer/cli.modules.d/foreman.yml` must match the credentials stored in `/etc/foreman-maintain/foreman-maintain.yml`.

- In addition, the credentials stored in `/etc/foreman-maintain/foreman-maintain.yml` should **not** be surrounded by single quotes, unlike the `~/.hammer/cli.modules.d/foreman.yml` file.  Here is an example `foreman-maintain.yml` file:

       <pre>
       ---
       :foreman:
         :username: admin
         :password: mypassword
       </pre>

For more KB articles/solutions related to Red Hat Satellite 6.x hammer Issues, please refer to the [Consolidated Troubleshooting Article for Red Hat Satellite 6.x hammer-related Issues](https://access.redhat.com/articles/6450521)

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