[Linux] Fix sourceField in system dashboard

[orestisfl]

Proposed commit message

Fixes the sourceField for the service name in the Linux system dashboard.

The Running Services (3) before, used service.type which, on my system, takes the values of system, linux, and http. I would expect that I see the total amount of services instead, like the ones that are listed on the graphs below.

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• I have verified that Kibana version constraints are current according to guidelines.
• I have verified that any added dashboard complies with Kibana's Dashboard good practices

How to test this PR locally

elastic-package build

Related issues

• Related feat(linux): Release linux metrics package as GA #15658
• Related https://github.com/elastic/ingest-dev/issues/6162

Screenshots

[elasticmachine]

Pinging @elastic/elastic-agent-data-plane (Team:Elastic-Agent-Data-Plane)

[pierrehilbert]

@orestisfl you also need to bump the version in the manifest.yml otherwise it won't work.

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: 84fec54

History

• 💔 Build #32889 failed ad73a77

cc @orestisfl

[elastic-vault-github-plugin-prod]

Package linux - 0.7.4 containing this change is available at https://epr.elastic.co/package/linux/0.7.4/