Hammer Could not load the API description from the server

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1

Problem:
Could not load the API description from the server:
Failed to open TCP connection to : (getaddrinfo: Name or service not known)

  • is the server down?
  • was ‘foreman-rake apipie:cache’ run on the server when using apipie cache? (typical production settings)
    Warning: An error occured while loading module hammer_cli_foreman.

Expected outcome:

Foreman and Proxy versions:

RH8.8 with Foreman v 3.7 and Katello v 4.9

This is a new installation.
Have ran the command foreman-rake apipie:cache
/root/.hammer/cli.modules.d/foreman.yml has been configured.
All modules in /etc/hammer/cli.modules.d are enabled.
foreman-maintain health check fails at the hammer-setup stage. I’m assuming due to the error.
Hammer log contains the above error.
Have restarted foreman server.
foreman-maintain service status returns OK.

Other relevant data:
hammer -d returns:

[ERROR 2023-09-13T11:33:50 API] Failed to open TCP connection to : (getaddrinfo: Name or service not known)
[DEBUG 2023-09-13T11:33:50 API] #<SocketError: Failed to open TCP connection to : (getaddrinfo: Name or service not known)>
[DEBUG 2023-09-13T11:33:50 HammerCLIForeman::CommandExtensions::OptionSources] Added predefined options for HammerCLIForeman::Command:
[ INFO 2023-09-13T11:33:50 Extensions] Applied HammerCLIForeman::CommandExtensions::OptionSources for all except nothing on HammerCLIForeman::Command.
[DEBUG 2023-09-13T11:33:50 HammerCLIForeman::CommandExtensions::Fields] Added predefined options for HammerCLIForeman::ListCommand: [:fields]
[ INFO 2023-09-13T11:33:50 Extensions] Applied HammerCLIForeman::CommandExtensions::Fields for all except nothing on HammerCLIForeman::ListCommand.
[DEBUG 2023-09-13T11:33:50 HammerCLIForeman::CommandExtensions::Fields] Added predefined options for HammerCLIForeman::InfoCommand: [:fields]
[ INFO 2023-09-13T11:33:50 Extensions] Applied HammerCLIForeman::CommandExtensions::Fields for all except nothing on HammerCLIForeman::InfoCommand.
[DEBUG 2023-09-13T11:33:50 HammerCLIForeman::CommandExtensions::UpdateCommon] Added predefined options for HammerCLIForeman::UpdateCommand:
[ INFO 2023-09-13T11:33:50 Extensions] Applied HammerCLIForeman::CommandExtensions::UpdateCommon for all except nothing on HammerCLIForeman::UpdateCommand.
[ INFO 2023-09-13T11:33:50 API] Server: https://foremanserver.com
[ INFO 2023-09-13T11:33:50 API] GET /apidoc/v2.en_GB.json
[DEBUG 2023-09-13T11:33:50 API] Params: {}
[DEBUG 2023-09-13T11:33:50 API] Headers: {
:accept => “application/json”,
:params => {}

Any assisstance would be appreciated.

2

You seem to have some sort of DNS/name resolution problem. It looks like your Foreman server cannot resolve it’s own name.

3

Turns out our proxy server was blocking requests to the Foreman server.
Unsetting the proxy variable resolved the problem.