pkg/cluster/spec: add supported configuration for grafana

[haiboumich]

What problem does this PR solve?

Add default_theme, org_name, org_role as supported configurations for Grafana.

What is changed and how it works?

Add sub-targets under grafana_servers in topology.yaml which is used as the configuration file for tiup-cluster deploy command.
Sample topology.yaml:

global:
  user: "root"
  ssh_port: 22
  deploy_dir: "/root/tidb-deploy"
  data_dir: "/root/tidb-data"
  arch: "amd64"

monitored:
  node_exporter_port: 9100
  blackbox_exporter_port: 9115

pd_servers:
  - host: $HOST_IP

tidb_servers:
  - host: $HOST_IP
    port: 4000
    status_port: 10080
    deploy_dir: "/root/tidb-deploy/tidb-4000"
    log_dir: "/root/tidb-deploy/tidb-4000/log"

tikv_servers:
  - host: $HOST_IP
    port: 20160
    status_port: 20180
    deploy_dir: "/root/data1/tidb-deploy/tikv-20160"
    data_dir: "/root/tidb-data/tikv-20160"
    log_dir: "/root/tidb-deploy/tikv-20160/log"

monitoring_servers:
  - host: $HOST_IP

grafana_servers:
  - host: $HOST_IP
    anonymous_enable: true
    default_theme: light
    org_name: Main Org.
    org_role: Viewer

alertmanager_servers:
  - host: $HOST_IP

Check List

Tests

• Manual test (add detailed scripts or steps below)
  • Step one
    In Linux environment, run make under the project's root path to generate the binary file in the bin directory
  • Step two
    Run ./tiup-cluster deploy test-tidb v5.1.1 /path/to/topology.yaml and ./tiup-cluster start test-tidb to start a TiDB cluster. You can use the provided sample topology.yaml above, remember to substitute $HOST_IP with yours.
    Also, you may also need to provide credentials by passing -u -p or -u -i in the deploy command, see tiup-cluster deploy -h.
  • Step three
    Open browser and type in $HOST_IP:3000. If you use the provided topology.yaml file above, you should find that you have logged in automatically and the theme is light.
    You can also make sure that the configuration takes effect by checking the value of default_theme, org_name, org_role, enabled in /root/tidb-deploy/grafana-3000/conf/grafana.ini. It should be the same as below.

    # Default UI theme ("dark" or "light")
    default_theme = light
    
    ############### Set Cookie Name for Multiple Instances               
    #######################
    [auth]
    login_cookie_name = grafana_session_3000
    
    #################################### Anonymous Auth        
    ##########################
    [auth.anonymous]
    enabled = true
    
    # specify organization name that should be used for unauthenticated users
    org_name = Main Org.
    
    # specify role for unauthenticated users
    org_role = Viewer

Code changes

Side effects

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation

Release notes:

Add `default_theme`, `org_name`, `org_role` as supported configurations for Grafana

[ti-chi-bot]

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• AstroProfundis

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[codecov-commenter]

Codecov Report

Merging #1566 (a12a9f7) into master (7ad8f97) will increase coverage by 13.40%.
The diff coverage is 100.00%.

❗ Current head a12a9f7 differs from pull request most recent head 5ba2032. Consider uploading reports for the commit 5ba2032 to get more accurate results

@@             Coverage Diff             @@
##           master    #1566       +/-   ##
===========================================
+ Coverage   26.20%   39.61%   +13.40%     
===========================================
  Files         266      228       -38     
  Lines       24038    21071     -2967     
===========================================
+ Hits         6300     8347     +2047     
+ Misses      16916    11465     -5451     
- Partials      822     1259      +437     

Flag	Coverage Δ
cluster	39.61% <100.00%> (?)
integrate	39.61% <100.00%> (+23.79%)	⬆️
tiup	?
unittest	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/cluster/spec/grafana.go	58.94% <100.00%> (+38.67%)	⬆️
pkg/cluster/template/config/grafana.go	84.31% <100.00%> (+84.31%)	⬆️
pkg/utils/regexp.go	0.00% <0.00%> (-100.00%)	⬇️
pkg/repository/store/store.go	0.00% <0.00%> (-100.00%)	⬇️
pkg/telemetry/telemetry.go	0.00% <0.00%> (-83.34%)	⬇️
pkg/repository/utils/hash.go	0.00% <0.00%> (-83.34%)	⬇️
pkg/repository/model/publish.go	0.00% <0.00%> (-83.34%)	⬇️
pkg/repository/store/local.go	0.00% <0.00%> (-82.61%)	⬇️
pkg/utils/semver.go	7.08% <0.00%> (-79.53%)	⬇️
pkg/meta/err.go	0.00% <0.00%> (-77.78%)	⬇️
... and 243 more

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[haiboumich]

/cc @AstroProfundis

[AstroProfundis]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 5ba2032