Some files can be sockets. Goss detects socket files correctly with filetype `socket`.

The prometheus metric goss_tests_run_outcomes_total has a label called 'outcome' which suffers from two problems:

1) It won't be set to 'pass' in case all tests succeed
2) The order of test results determines the final value of the label, e.g. if there is a failed & skipped test then the outcome will be skipped, but if order of results is reversed the outcome will become failed.

This commit fixes both by introducing a helper function which determines whether the outcome can be changed and adds tests to verify that behavior.

fixes #789

Signed-off-by: Sebastian Hoß <seb@xn--ho-hia.de>

Bumps [golang.org/x/crypto](https://github.com/golang/crypto) from 0.14.0 to 0.17.0.
- [Commits](golang/crypto@v0.14.0...v0.17.0)

---
updated-dependencies:
- dependency-name: golang.org/x/crypto
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* add more labels to prometheus output

This adds a 'resource_id' label to each test-specific metric if the 'verbose' format option was enabled.

Since we only have access to format options in the 'Output' method, we are creating metrics during the first run of that method.

Metrics can only be registered once for any given set of labels, so we create a custom registry and use the existence of that as a check whether we need to create/register metrics. This has the added benefit of simplifying the test a tiny bit, and it exposes even less metrics on the /health endpoint.

fixes #862

Signed-off-by: Sebastian Hoß <seb@xn--ho-hia.de>

* mention prometheus in docs for verbose flag

Signed-off-by: Sebastian Hoß <seb@xn--ho-hia.de>

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Signed-off-by: Sebastian Hoß <seb@xn--ho-hia.de>

* feat: s390x build option added to build packages for IBM Z series machines

* feat: s390x details added in travis pipeline

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Co-authored-by: sidhanauk <sidhanauk@gmail.com>

Fixes #853

Update mount check to support timeout.

Signed-off-by: R.I.Pienaar <rip@devco.net>

Molecule has not supported Goss for some time.

Fixes: #880

closes #885