infra/services/monitoring/lgtm/grafana.nix

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{
config,
lib,
...
}:
let
cfg = config.bagel.services.grafana;
inherit (lib) mkEnableOption mkIf;
in
{
options.bagel.services.grafana.enable = mkEnableOption "Grafana frontend";
config = mkIf cfg.enable {
age.secrets.grafana-oauth-secret = {
file = ../../../secrets/grafana-oauth-secret.age;
owner = "grafana";
};
services = {
grafana = {
enable = true;
settings = {
server = {
domain = "grafana.forkos.org";
http_addr = "127.0.0.1";
http_port = 2342;
root_url = "https://grafana.forkos.org/";
};
database = {
type = "postgres";
user = "grafana";
host = "/run/postgresql";
};
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"auth.anonymous" = {
enabled = true;
org_name = "Main Org.";
org_role = "Viewer";
};
"auth.generic_oauth" = {
enabled = true;
name = "Lix SSO";
client_id = "forkos-grafana";
client_secret = "$__file{${config.age.secrets.grafana-oauth-secret.path}}";
auth_url = "https://identity.lix.systems/realms/lix-project/protocol/openid-connect/auth";
token_url = "https://identity.lix.systems/realms/lix-project/protocol/openid-connect/token";
api_url = "https://identity.lix.systems/realms/lix-project/protocol/openid-connect/userinfo";
login_attribute_path = "username";
email_attribute_path = "email";
name_attribute_path = "full_name";
scopes = [
"openid"
"profile"
"email"
"offline_access"
"roles"
];
allow_sign_up = true;
auto_login = true;
allow_assign_grafana_admin = true;
role_attribute_path = "contains(grafana_roles[*], 'Admin') && 'GrafanaAdmin' || contains(grafana_roles[*], 'Editor') && 'Editor' || 'Viewer'";
};
dashboards.default_home_dashboard_path = "${./dashboards/node_exporter.json}";
feature_toggles.enable = "autoMigrateOldPanels newVizTooltips";
security.angular_support_enabled = false;
};
provision = {
dashboards.settings = {
apiVersion = 1;
providers = [
{
name = "default";
options.path = ./dashboards;
}
];
};
datasources.settings = {
apiVersion = 1;
datasources = [
{
name = "Mimir";
type = "prometheus";
uid = "mimir";
access = "proxy";
url = "http://127.0.0.1:9009/prometheus";
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isDefault = true;
}
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{
name = "Loki";
type = "loki";
uid = "loki";
access = "proxy";
url = "http://127.0.0.1:9090/";
}
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{
name = "Mimir Alertmanager";
type = "alertmanager";
uid = "mimir-alertmanager";
access = "proxy";
url = "http://127.0.0.1:9009/";
jsonData = {
handleGrafanaManagedAlerts = true;
implementation = "mimir";
};
}
];
};
};
};
postgresql = {
ensureDatabases = [ "grafana" ];
ensureUsers = [
{
name = "grafana";
ensureDBOwnership = true;
}
];
};
nginx = let
scfg = config.services.grafana.settings.server;
in {
enable = true;
virtualHosts."${scfg.domain}" = {
enableACME = true;
forceSSL = true;
locations."/" = {
proxyPass = "http://${scfg.http_addr}:${toString scfg.http_port}";
proxyWebsockets = true;
};
};
};
};
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bagel.monitoring.grafana-agent.exporters.grafana.port = 2342;
};
}