Dashboard: Flavor filtering

[cbartz]

Overview

Add support for flavor filtering by introducing a variable.

Rationale

Since canonical/grafana-agent-operator#47 has landed in the grafana agent, the juju_application variable no longer returns the application name of the principal charm (which is the flavor), so another mechanism for filtering by flavor is required.

Checklist

• The charm style guide was applied
• The contributing guide was applied
• The changes are compliant with ISD054 - Managing Charm Complexity
• The documentation is generated using src-docs
• The documentation for charmhub is updated.
• The PR is tagged with appropriate label (urgent, trivial, complex)

[github-actions]

Test coverage for 2239db3

Name                         Stmts   Miss Branch BrPart  Cover   Missing
------------------------------------------------------------------------
src/charm.py                   468    104    121     24    76%   87-88, 95-96, 120-121, 125-127, 167-169, 178->190, 188, 224-243, 257-259, 260->264, 288-292, 323, 403-408, 431, 448-449, 463-464, 477-500, 524-527, 534, 542, 558, 562-567, 612->615, 628-629, 631-632, 666-673, 697-698, 731-732, 760-761, 763-764, 766-767, 841->843, 904-905, 921, 942-944, 948-951, 955
src/charm_state.py             138     18     22      3    86%   131-138, 221-224, 266-268, 279-280, 286-291, 302-304
src/errors.py                   41      0      0      0   100%
src/event_timer.py              63      9      6      1    86%   94-95, 103-104, 126, 143-144, 160-161
src/firewall.py                 52     18     20      0    61%   42-43, 66-69, 110-184
src/github_client.py            89     14     38      4    80%   38-45, 146, 169, 182-189, 207->242, 236
src/github_metrics.py           14      0      0      0   100%
src/github_type.py              50      0      0      0   100%
src/lxd_type.py                 37      0      2      0   100%
src/metrics.py                  73      2     10      1    96%   61->64, 170-171
src/metrics_type.py              6      0      0      0   100%
src/runner.py                  329     72     98     25    73%   46->48, 130, 183->197, 237-238, 264-265, 306-315, 339-344, 349, 369, 373-383, 432->435, 438-440, 447, 461, 471, 475, 477, 492, 526-531, 547-560, 571-610, 615, 653, 706-708, 712, 730, 765, 791, 796-808, 822, 827->829, 832-834
src/runner_logs.py              35      2      6      1    93%   62->61, 66-67
src/runner_manager.py          308     76    108      9    73%   123, 168-170, 183-184, 196-198, 204-209, 213-214, 224-225, 244, 287-288, 332-334, 399, 419-423, 448, 500-503, 535-553, 566-571, 592-597, 609-616, 711-724, 734, 739-750
src/runner_manager_type.py      40      0      6      0   100%
src/runner_metrics.py          123      8     20      2    93%   147-148, 160, 191-192, 307-311
src/runner_type.py              47      0     10      0   100%
src/shared_fs.py               116     16     20      0    88%   108-109, 133-134, 217-218, 241-242, 254-255, 260-261, 267-268, 292-293
src/utilities.py                68      5     20      7    86%   74->76, 78->84, 91, 121, 135, 175, 228
------------------------------------------------------------------------
TOTAL                         2097    344    507     77    81%

Static code analysis report

Run started:2024-02-13 12:49:15.830116

Test results:
  No issues identified.

Code scanned:
  Total lines of code: 4524
  Total lines skipped (#nosec): 0
  Total potential issues skipped due to specifically being disabled (e.g., #nosec BXXX): 7

Run metrics:
  Total issues (by severity):
  	Undefined: 0
  	Low: 0
  	Medium: 0
  	High: 0
  Total issues (by confidence):
  	Undefined: 0
  	Low: 0
  	Medium: 0
  	High: 0
Files skipped (0):