mcanaves

"""
Deregister retired AMIs.

This script deregister all images marked as retired more than a X days
and removes the associated snapshot volumes.
To be able to identify the marked ones as retired and the time when it was
done the following tag system is used:
    - stage [dev|production|retired]: used to track the life cycle of an image.
    - state-changed [YYYYMMDDHHSS]: datetime mark to track when 
                                    stage changes were made.

mcanaves

"""
Thanks to gane5h for the original script.
Custom parser for JSON nginx log suitable for use by Datadog 'dogstreams'.
To use, add to datadog.conf as follows:
    dogstreams: [path to ngnix log (e.g: "/var/log/nginx/access.log"]:[path to this python script (e.g
    "/usr/share/datadog/agent/dogstream/nginx.py")]:[name of parsing method of this file ("parse")]
so, an example line would be:
    dogstreams: /var/log/nginx/access.log:/usr/share/datadog/agent/dogstream/nginx.py:parse
Log of nginx should be defined like that:
    log_format access_json '{ "time": "$time_local", '

mcanaves

SELECT start, stop FROM (
  SELECT m.<number_field> + 1 AS start,
    (SELECT min(<number_field>) - 1 FROM <table> AS x WHERE x.<number_field> > m.<number_field>) AS stop
  FROM <table> AS m
    LEFT OUTER JOIN <table> AS r ON m.<number_field> = r.<number_field> - 1
  WHERE r.<number_field> IS NULL
) AS x
WHERE stop IS NOT NULL 
ORDER BY start;

mcanaves

SELECT <filter_column1>, ..., <filter_columnN>, count(*)
FROM <table>
GROUP BY <filter_column1>, ..., <filter_columnN>
HAVING count(*) > 1;

mcanaves

DO $$
   DECLARE s record;
   BEGIN
    FOR s IN SELECT n.nspname AS schema
                FROM pg_catalog.pg_namespace AS n
                WHERE n.nspname NOT LIKE 'pg_%'  AND n.nspname <> 'information_schema'
    LOOP
       RAISE NOTICE '%', s;
       EXECUTE FORMAT('<QUERY ON %I>', s.schema);
    END LOOP;

mcanaves

SELECT  'SELECT SETVAL(' ||quote_literal(S.relname)|| ', MAX(' ||quote_ident(C.attname)|| ') ) FROM ' ||quote_ident(T.relname)|| ';'
FROM pg_class AS S, pg_depend AS D, pg_class AS T, pg_attribute AS C
WHERE S.relkind = 'S'
    AND S.oid = D.objid
    AND D.refobjid = T.oid
    AND D.refobjid = C.attrelid
    AND D.refobjsubid = C.attnum
ORDER BY S.relname;