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Merged
staaldraad merged 3 commits into from
Oct 29, 2026
Merged

chore: update and tweak apparmor profile #2599

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f7c561d
chore: update and tweak apparmor profile
staaldraad Oct 27, 2026
07f59b8
fix: w implies a
staaldraad Oct 27, 2026
6e19c5c
chore: extend deny coverage
staaldraad Oct 28, 2026
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73 changes: 67 additions & 6 deletions ansible/files/postgresql_config/sbpostgres_apparmor
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Original file line number Diff line number Diff line change
Expand Up @@ -18,12 +18,43 @@ profile sbpostgres flags=(attach_disconnected) {
/** rw,
owner /** m,
/ wr,
/nix/store/** m,

# /nix/store is immutable: postgres may read and execute from it, never modify it.
deny /nix/store/** wl,
deny /nix/var/nix/profiles/** wl,
deny /var/lib/postgresql/.nix-profile{,/,/**} wl,
deny /var/lib/postgresql/.local/state/nix/** wl,
deny /var/lib/postgresql/.local{,/} wl,
deny /var/lib/postgresql/.local/state{,/} wl,
deny /var/lib/postgresql/.local/state/nix{,/} wl,
/nix/store/** mr,

deny /tmp/** mx,
deny /var/tmp/** mx,
deny /dev/shm/** mx,

/etc r,
/usr/local r,
# lock permission for pgroonga
/data/pgdata/pgroonga.log k,

# sensitive paths that postgres should never need access to
deny /etc/adminapi/** rw,
deny /etc/auth.d/** rw,
deny /etc/envoy/** rw,
deny /etc/gotrue*.env rw,
deny /etc/kong/** rw,
deny /etc/postgrest/** rw,
deny /etc/salt/** rw,
deny /etc/ssl/adminapi/** rw,
deny /etc/vector/** rw,
deny /opt/gotrue/** rw,
deny /opt/saltstack/** rw,
deny /opt/supabase-state/** rw,

# lock permission for duckdb extension downloads
/var/lib/postgresql/.duckdb/** rwk,

# WAL directory - needs link permission for segment recycling
/data/pgdata/pg_wal/** rwkl,
/data/pgdata/pg_wal/ rw,
Expand Down Expand Up @@ -62,13 +93,16 @@ profile sbpostgres flags=(attach_disconnected) {
/usr/bin/dash Pix -> postgres_shell,
/nix/store/*/bin/bash Pix -> postgres_shell,
/usr/lib/postgresql/bin/pgsodium_getkey.sh Pix -> postgres_shell,
/usr/lib/postgresql/15/bin/pgsodium_getkey.sh Pix -> postgres_shell,
/usr/bin/cat Pix -> postgres_shell,
/bin/cat Pix -> postgres_shell,
/usr/bin/admin-mgr Pix -> postgres_shell,
/nix/store/*/bin/wal-g-2 Pix -> postgres_shell,
/nix/store/*/bin/wal-g-3 Pix -> postgres_shell,
/usr/local/bin/wal-g Pix -> postgres_shell,
/nix/store/*/bin/pgbackrest Pix -> postgres_shell,
/nix/store/*/bin/pg_dump ix,
/nix/store/*/bin/pg_archivecleanup ix,
/usr/bin/pgbackrest Pix -> pgbackrest_shell,
/usr/bin/nix Pix -> pgbackrest_shell,
/usr/bin/sudo Pix -> pgbackrest_shell,
Expand Down Expand Up @@ -102,21 +136,25 @@ profile sbpostgres flags=(attach_disconnected) {

# backup things
/usr/lib/postgresql/bin/pgsodium_getkey.sh ix,
/usr/lib/postgresql/15/bin/pgsodium_getkey.sh ix,
/usr/bin/admin-mgr ix,
/opt/supabase-admin-agent/supabase-admin-agent ix,
/opt/supabase-admin-agent/supabase-admin-agent-linux-arm64 ix,
/opt/supabase-admin-agent/supabase-admin-agent-linux-amd64 ix,
/nix/store/*/bin/.postgres-wrapped ix,
/nix/store/*/bin/wal-g-2 ix,
/nix/store/*/bin/wal-g-3 ix,
/usr/local/bin/wal-g ix,
/nix/store/*/bin/pgbackrest ix,
/nix/store/*/bin/pg_dump ix,
/nix/store/*/bin/pg_archivecleanup ix,

# file path permissions
/** r,
/data/wal_fetch_dir/ rw,
/data/wal_fetch_dir/** rw,
/tmp/wal_fetch_dir/ rw,
/tmp/wal_fetch_dir/** rw,
/var/lib/postgresql/data rw,
/data/pgdata rw,
/data/pgdata/pg_wal/** rwkl,
Expand All @@ -132,12 +170,22 @@ profile sbpostgres flags=(attach_disconnected) {
/etc/** r,
/usr/local/** r,


# sensitive paths that postgres should never need access to
deny /etc/adminapi/** rw,
deny /etc/auth.d/** rw,
deny /etc/envoy/** rw,
deny /etc/gotrue*.env rw,
deny /etc/kong/** rw,
deny /etc/postgrest/** rw,
deny /etc/salt/** rw,
deny /etc/ssl/adminapi/** rw,
deny /etc/vector/** rw,
deny /opt/gotrue/** rw,
deny /opt/saltstack/** rw,
deny /opt/supabase-state/** rw,
deny /var/lib/supabase/** rwx,
deny /var/lib/supabase-admin-agent/** rwx,
deny /var/cache/supabase-admin-agent/** rwx,
deny /opt/saltstack/** rwx,
deny /etc/salt/** rwx,
deny /root wr,
deny /home/** wr,
# wal-g needs access to its own home directory
Expand Down Expand Up @@ -179,7 +227,9 @@ profile sbpostgres flags=(attach_disconnected) {
# file path permissions
/** r,
/data/wal_fetch_dir/ rw,
/data/wal_fetch_dir/** rw,
/tmp/wal_fetch_dir/ rw,
/tmp/wal_fetch_dir/** rw,
/var/lib/postgresql/data rw,
/data/pgdata rw,
/data/pgdata/pg_wal/** rwkl,
Expand All @@ -195,11 +245,22 @@ profile sbpostgres flags=(attach_disconnected) {
/etc/** r,
/usr/local/** r,

# sensitive paths that postgres should never need access to
deny /etc/adminapi/** rw,
deny /etc/auth.d/** rw,
deny /etc/envoy/** rw,
deny /etc/gotrue*.env rw,
deny /etc/kong/** rw,
deny /etc/postgrest/** rw,
deny /etc/salt/** rw,
deny /etc/ssl/adminapi/** rw,
deny /etc/vector/** rw,
deny /opt/gotrue/** rw,
deny /opt/saltstack/** rw,
deny /opt/supabase-state/** rw,
deny /var/lib/supabase/** rwx,
deny /var/lib/supabase-admin-agent/** rwx,
deny /var/cache/supabase-admin-agent/** rwx,
deny /opt/saltstack/** rwx,
deny /etc/salt/** rwx,
deny /root wr,
deny /home/** wr,

Expand Down
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