78 lines
2.4 KiB
PL/PgSQL
78 lines
2.4 KiB
PL/PgSQL
-- CL8: instance health monitoring fields + lock helpers
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alter table public.plesk_instances
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add column if not exists health_enabled boolean not null default true,
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add column if not exists health_status text not null default 'unknown',
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add column if not exists health_last_checked_at timestamptz,
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add column if not exists health_last_ok_at timestamptz,
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add column if not exists health_last_error text,
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add column if not exists health_last_latency_ms integer,
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add column if not exists health_check_frequency_minutes integer not null default 30,
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add column if not exists health_next_check_at timestamptz,
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add column if not exists health_lock_until timestamptz,
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add column if not exists health_lock_token text;
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alter table public.plesk_instances
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drop constraint if exists plesk_instances_health_status_check;
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alter table public.plesk_instances
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add constraint plesk_instances_health_status_check
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check (health_status in ('ok', 'degraded', 'down', 'unknown'));
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alter table public.plesk_instances
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drop constraint if exists plesk_instances_health_check_frequency_minutes_check;
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alter table public.plesk_instances
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add constraint plesk_instances_health_check_frequency_minutes_check
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check (health_check_frequency_minutes between 5 and 10080);
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create index if not exists idx_plesk_instances_health_due
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on public.plesk_instances (health_enabled, health_next_check_at);
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create or replace function public.acquire_instance_health_lock(
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p_instance_id uuid,
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p_lock_token text,
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p_ttl_seconds integer default 300,
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p_force boolean default false
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)
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returns boolean
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language plpgsql
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security definer
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set search_path = public
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as $$
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declare
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v_acquired boolean := false;
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begin
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update public.plesk_instances
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set
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health_lock_until = now() + make_interval(secs => p_ttl_seconds),
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health_lock_token = p_lock_token
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where id = p_instance_id
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and health_enabled = true
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and (
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p_force = true
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or health_next_check_at is null
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or health_next_check_at <= now()
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)
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and (health_lock_until is null or health_lock_until < now());
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get diagnostics v_acquired = row_count;
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return v_acquired;
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end;
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$$;
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create or replace function public.release_instance_health_lock(
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p_instance_id uuid,
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p_lock_token text
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)
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returns void
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language sql
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security definer
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set search_path = public
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as $$
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update public.plesk_instances
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set health_lock_until = null,
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health_lock_token = null
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where id = p_instance_id
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and health_lock_token = p_lock_token;
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$$; |