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2f8bbc40dd
The queue used for varnish purges has so few entries that it's really not worth paying the management overhead for skytools/pgq. Instead we can use a very simple local deamon using LISTEN/NOTIFY to fire them off. Now include a proper nagios plugin in this package, so we can get rid of the not-very-nice munin plugin currently used in the deployment.
30 lines
1.1 KiB
PL/PgSQL
30 lines
1.1 KiB
PL/PgSQL
BEGIN;
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--
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-- Create a function to purge from varnish cache
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-- By default this adds the object to a local queue,
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-- but this function can be replaced with a void one
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-- when running a development version.
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--
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CREATE SCHEMA IF NOT EXISTS varnishqueue;
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CREATE TABLE IF NOT EXISTS varnishqueue.queue (id bigserial primary key, mode char NOT NULL, consumerid int NOT NULL, expr text NOT NULL, added timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP, completed timestamptz NULL);
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CREATE TABLE IF NOT EXISTS varnishqueue.consumers (consumerid serial PRIMARY KEY, consumer text NOT NULL);
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DROP FUNCTION IF EXISTS varnish_purge(url text);
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CREATE OR REPLACE FUNCTION varnish_purge(url text)
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RETURNS void
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AS $$
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INSERT INTO varnishqueue.queue (mode, consumerid, expr) SELECT 'P', consumerid, $1 FROM varnishqueue.consumers;
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NOTIFY varnishqueue;
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$$ LANGUAGE 'sql';
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DROP FUNCTION IF EXISTS varnish_purge_expr(expr text);
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CREATE OR REPLACE FUNCTION varnish_purge_expr(expr text)
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RETURNS void
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AS $$
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INSERT INTO varnishqueue.queue (mode, consumerid, expr) SELECT 'X', consumerid, $1 FROM varnishqueue.consumers;
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NOTIFY varnishqueue;
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$$ LANGUAGE 'sql';
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COMMIT;
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