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nix(postgrest-with-pg-...): use postgresql.conf instead of CLI arguments

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This is easier to reason about and easier to extend. Also removes a tiny
bit of repetition.
This commit is contained in:
Wolfgang Walther
2026-05-17 20:03:15 +00:00
parent 70327cf869
commit abe3e511bf
1 changed files with 10 additions and 2 deletions
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nix/tools/withTools.nix
+10 -2
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@@ -14,6 +14,10 @@ let
{ name, postgresql }: { name, postgresql }:
let let
commandName = "postgrest-with-${name}"; commandName = "postgrest-with-${name}";
postgresqlConf = writeText "postgresql.conf" "
listen_addresses = ''
log_statement = all
";
in in
checkedShellScript checkedShellScript
{ {
@@ -72,6 +76,10 @@ let
TZ=$PGTZ initdb --no-locale --encoding=UTF8 --nosync -U postgres --auth=trust \ TZ=$PGTZ initdb --no-locale --encoding=UTF8 --nosync -U postgres --auth=trust \
>> "$setuplog" >> "$setuplog"
# Append our own config to the one initdb created to avoid replacing
# default values created by the latter.
cat ${postgresqlConf} >> "$tmpdir/db/postgresql.conf"
log "Starting the database cluster..." log "Starting the database cluster..."
# Instead of listening on a local port, we will listen on a unix domain socket. # Instead of listening on a local port, we will listen on a unix domain socket.
@@ -80,7 +88,7 @@ let
# On MacOS, it's 104 chars # On MacOS, it's 104 chars
# See: https://serverfault.com/questions/641347/check-if-a-path-exceeds-maximum-for-unix-domain-socket # See: https://serverfault.com/questions/641347/check-if-a-path-exceeds-maximum-for-unix-domain-socket
pg_ctl -l "$tmpdir/db.log" -w start -o "-F -c listen_addresses=\"\" -c hba_file=$HBA_FILE -k $PGHOST -c log_statement=\"all\" " \ pg_ctl -l "$tmpdir/db.log" -w start -o "-F -c hba_file=$HBA_FILE -k $PGHOST " \
>> "$setuplog" >> "$setuplog"
log "Creating a minimally privileged $PGUSER connection role..." log "Creating a minimally privileged $PGUSER connection role..."
@@ -106,7 +114,7 @@ let
log "Starting replica on $replica_host" log "Starting replica on $replica_host"
# We set a low max_standby_streaming_delay to make the replication conflict fail faster in tests (otherwise it waits for the default 30s) # We set a low max_standby_streaming_delay to make the replication conflict fail faster in tests (otherwise it waits for the default 30s)
pg_ctl -D "$replica_dir" -l "$replica_dblog" -w start -o "-F -c listen_addresses=\"\" -c hba_file=$HBA_FILE -k $replica_host -c log_statement=\"all\" -c max_standby_streaming_delay=\"3s\" " \ pg_ctl -D "$replica_dir" -l "$replica_dblog" -w start -o "-F -c hba_file=$HBA_FILE -k $replica_host -c max_standby_streaming_delay=\"3s\" " \
>> "$setuplog" >> "$setuplog"
>&2 echo "${commandName}: Replica enabled. You can connect to it with: psql 'postgres:///$PGDATABASE?host=$replica_host' -U postgres" >&2 echo "${commandName}: Replica enabled. You can connect to it with: psql 'postgres:///$PGDATABASE?host=$replica_host' -U postgres"