capsul-flask/capsulflask/schema_migrations/15_up_introduce_hosts.sql

CREATE TABLE hosts (
  id                 TEXT PRIMARY KEY NOT NULL,
  last_health_check  TIMESTAMP NOT NULL DEFAULT NOW(),
  https_url          TEXT NOT NULL,
  token              TEXT NOT NULL
);

INSERT INTO hosts (id, https_url, token) VALUES ('baikal', 'http://localhost:5000', 'changeme');

ALTER TABLE vms 
ADD COLUMN host TEXT REFERENCES hosts(id) ON DELETE RESTRICT DEFAULT 'baikal';

CREATE TABLE operations (
  id                 SERIAL PRIMARY KEY ,
  email              TEXT REFERENCES accounts(email) ON DELETE RESTRICT,
  created            TIMESTAMP NOT NULL DEFAULT NOW(),
  payload            TEXT NOT NULL
);

CREATE TABLE host_operation (
  host        TEXT NOT NULL REFERENCES hosts(id) ON DELETE RESTRICT,
  operation   INTEGER NOT NULL REFERENCES operations(id) ON DELETE RESTRICT,
  assignment_status TEXT NULL,
  assigned    TIMESTAMP NULL,
  completed   TIMESTAMP NULL,
  results     TEXT NULL,
  PRIMARY KEY (host, operation)
);

UPDATE schemaversion SET version = 15;