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nixos/postgresql: move ExecStartPost into postStart

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This commit is contained in:
Aaron Andersen 2020-08-12 21:12:24 -04:00
parent ec82ae3c39
commit 8e045b42fd
1 changed files with 29 additions and 34 deletions
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63
nixos/modules/services/databases/postgresql.nix
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@ -311,6 +311,35 @@ in
''}
'';
# Wait for PostgreSQL to be ready to accept connections.
postStart =
''
PSQL="psql --port=${toString cfg.port}"
while ! $PSQL -d postgres -c "" 2> /dev/null; do
if ! kill -0 "$MAINPID"; then exit 1; fi
sleep 0.1
done
if test -e "${cfg.dataDir}/.first_startup"; then
${optionalString (cfg.initialScript != null) ''
$PSQL -f "${cfg.initialScript}" -d postgres
''}
rm -f "${cfg.dataDir}/.first_startup"
fi
'' + optionalString (cfg.ensureDatabases != []) ''
${concatMapStrings (database: ''
$PSQL -tAc "SELECT 1 FROM pg_database WHERE datname = '${database}'" | grep -q 1 || $PSQL -tAc 'CREATE DATABASE "${database}"'
'') cfg.ensureDatabases}
'' + ''
${concatMapStrings (user: ''
$PSQL -tAc "SELECT 1 FROM pg_roles WHERE rolname='${user.name}'" | grep -q 1 || $PSQL -tAc 'CREATE USER "${user.name}"'
${concatStringsSep "\n" (mapAttrsToList (database: permission: ''
$PSQL -tAc 'GRANT ${permission} ON ${database} TO "${user.name}"'
'') user.ensurePermissions)}
'') cfg.ensureUsers}
'';
serviceConfig = mkMerge [
{ ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
User = "postgres";
@ -330,40 +359,6 @@ in
TimeoutSec = 120;
ExecStart = "${postgresql}/bin/postgres";
# Wait for PostgreSQL to be ready to accept connections.
ExecStartPost =
let
setupScript = pkgs.writeScript "postgresql-setup" (''
#!${pkgs.runtimeShell} -e
PSQL="psql --port=${toString cfg.port}"
while ! $PSQL -d postgres -c "" 2> /dev/null; do
if ! kill -0 "$MAINPID"; then exit 1; fi
sleep 0.1
done
if test -e "${cfg.dataDir}/.first_startup"; then
${optionalString (cfg.initialScript != null) ''
$PSQL -f "${cfg.initialScript}" -d postgres
''}
rm -f "${cfg.dataDir}/.first_startup"
fi
'' + optionalString (cfg.ensureDatabases != []) ''
${concatMapStrings (database: ''
$PSQL -tAc "SELECT 1 FROM pg_database WHERE datname = '${database}'" | grep -q 1 || $PSQL -tAc 'CREATE DATABASE "${database}"'
'') cfg.ensureDatabases}
'' + ''
${concatMapStrings (user: ''
$PSQL -tAc "SELECT 1 FROM pg_roles WHERE rolname='${user.name}'" | grep -q 1 || $PSQL -tAc 'CREATE USER "${user.name}"'
${concatStringsSep "\n" (mapAttrsToList (database: permission: ''
$PSQL -tAc 'GRANT ${permission} ON ${database} TO "${user.name}"'
'') user.ensurePermissions)}
'') cfg.ensureUsers}
'');
in
"${setupScript}";
}
(mkIf (cfg.dataDir == "/var/lib/postgresql/${cfg.package.psqlSchema}") {
StateDirectory = "postgresql postgresql/${cfg.package.psqlSchema}";