Create tables for allocating builds

One table to store which build is allocated to which agent, and another to
store a "plan" of allocations. For this plan, a build can be potentially
allocated to multiple agents, and which agent it will be allocated to depends
on which agent claims it first.

7 files changed, 53 insertions, 0 deletions

diff --git a/sqitch/pg/deploy/build_allocation_tables.sql b/sqitch/pg/deploy/build_allocation_tables.sql
new file mode 100644
index 0000000..443089b
--- /dev/null
+++ b/sqitch/pg/deploy/build_allocation_tables.sql
@@ -0,0 +1,7 @@
+-- Deploy guix-build-coordinator:build_allocation_tables to pg
+
+BEGIN;
+
+-- XXX Add DDLs here.
+
+COMMIT;
diff --git a/sqitch/pg/revert/build_allocation_tables.sql b/sqitch/pg/revert/build_allocation_tables.sql
new file mode 100644
index 0000000..14d24d3
--- /dev/null
+++ b/sqitch/pg/revert/build_allocation_tables.sql
@@ -0,0 +1,7 @@
+-- Revert guix-build-coordinator:build_allocation_tables from pg
+
+BEGIN;
+
+-- XXX Add DDLs here.
+
+COMMIT;
diff --git a/sqitch/pg/verify/build_allocation_tables.sql b/sqitch/pg/verify/build_allocation_tables.sql
new file mode 100644
index 0000000..2f382ca
--- /dev/null
+++ b/sqitch/pg/verify/build_allocation_tables.sql
@@ -0,0 +1,7 @@
+-- Verify guix-build-coordinator:build_allocation_tables on pg
+
+BEGIN;
+
+-- XXX Add verifications here.
+
+ROLLBACK;
diff --git a/sqitch/sqitch.plan b/sqitch/sqitch.plan
index ff6995b..698e54f 100644
--- a/sqitch/sqitch.plan
+++ b/sqitch/sqitch.plan
@@ -5,3 +5,4 @@ schema 2020-04-03T21:01:15Z Christopher Baines <mail@cbaines.net> # Create a sch
 initial_derivation_tables 2020-04-04T09:48:34Z Christopher Baines <mail@cbaines.net> # Create initial derivation related tables
 create_builds 2020-04-06T18:50:48Z Christopher Baines <mail@cbaines.net> # Create builds
 initial_agent_tables 2020-04-09T20:03:53Z Christopher Baines <mail@cbaines.net> # Create initial tables for agent related state
+build_allocation_tables 2020-04-10T19:26:36Z Christopher Baines <mail@cbaines.net> # Create initial tables for allocating builds
diff --git a/sqitch/sqlite/deploy/build_allocation_tables.sql b/sqitch/sqlite/deploy/build_allocation_tables.sql
new file mode 100644
index 0000000..c87438c
--- /dev/null
+++ b/sqitch/sqlite/deploy/build_allocation_tables.sql
@@ -0,0 +1,17 @@
+-- Deploy guix-build-coordinator:build_allocation_tables to sqlite
+
+BEGIN;
+
+CREATE TABLE allocated_builds (
+       build_id PRIMARY KEY NOT NULL REFERENCES builds (uuid),
+       agent_id NOT NULL REFERENCES agents (id)
+);
+
+CREATE TABLE build_allocation_plan (
+       build_id NOT NULL REFERENCES builds (uuid),
+       agent_id NOT NULL REFERENCES agents (id),
+       ordering INTEGER NOT NULL,
+       PRIMARY KEY (agent_id, build_id)
+);
+
+COMMIT;
diff --git a/sqitch/sqlite/revert/build_allocation_tables.sql b/sqitch/sqlite/revert/build_allocation_tables.sql
new file mode 100644
index 0000000..193cc59
--- /dev/null
+++ b/sqitch/sqlite/revert/build_allocation_tables.sql
@@ -0,0 +1,7 @@
+-- Revert guix-build-coordinator:build_allocation_tables from sqlite
+
+BEGIN;
+
+-- XXX Add DDLs here.
+
+COMMIT;
diff --git a/sqitch/sqlite/verify/build_allocation_tables.sql b/sqitch/sqlite/verify/build_allocation_tables.sql
new file mode 100644
index 0000000..91776a5
--- /dev/null
+++ b/sqitch/sqlite/verify/build_allocation_tables.sql
@@ -0,0 +1,7 @@
+-- Verify guix-build-coordinator:build_allocation_tables on sqlite
+
+BEGIN;
+
+-- XXX Add verifications here.
+
+ROLLBACK;