snapshot of https://github.com/zulip/zulip.git @ 48c69911c7dd4e03b20552eb3bd77ad8151c1357 (2026-09-15)

puppet/kandra/files/postgresql/pg_hba.conf

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+# PostgreSQL Client Authentication Configuration File
+# ===================================================
+#
+# Refer to the "Client Authentication" section in the PostgreSQL
+# documentation for a complete description of this file.  A short
+# synopsis follows.
+#
+# This file controls: which hosts are allowed to connect, how clients
+# are authenticated, which PostgreSQL user names they can use, which
+# databases they can access.  Records take one of these forms:
+#
+# local      DATABASE  USER  METHOD  [OPTIONS]
+# host       DATABASE  USER  ADDRESS  METHOD  [OPTIONS]
+# hostssl    DATABASE  USER  ADDRESS  METHOD  [OPTIONS]
+# hostnossl  DATABASE  USER  ADDRESS  METHOD  [OPTIONS]
+#
+# (The uppercase items must be replaced by actual values.)
+#
+# The first field is the connection type: "local" is a Unix-domain
+# socket, "host" is either a plain or SSL-encrypted TCP/IP socket,
+# "hostssl" is an SSL-encrypted TCP/IP socket, and "hostnossl" is a
+# plain TCP/IP socket.
+#
+# DATABASE can be "all", "sameuser", "samerole", "replication", a
+# database name, or a comma-separated list thereof. The "all"
+# keyword does not match "replication". Access to replication
+# must be enabled in a separate record (see example below).
+#
+# USER can be "all", a user name, a group name prefixed with "+", or a
+# comma-separated list thereof.  In both the DATABASE and USER fields
+# you can also write a file name prefixed with "@" to include names
+# from a separate file.
+#
+# ADDRESS specifies the set of hosts the record matches.  It can be a
+# host name, or it is made up of an IP address and a CIDR mask that is
+# an integer (between 0 and 32 (IPv4) or 128 (IPv6) inclusive) that
+# specifies the number of significant bits in the mask.  A host name
+# that starts with a dot (.) matches a suffix of the actual host name.
+# Alternatively, you can write an IP address and netmask in separate
+# columns to specify the set of hosts.  Instead of a CIDR-address, you
+# can write "samehost" to match any of the server's own IP addresses,
+# or "samenet" to match any address in any subnet that the server is
+# directly connected to.
+#
+# METHOD can be "trust", "reject", "md5", "password", "gss", "sspi",
+# "krb5", "ident", "peer", "pam", "ldap", "radius" or "cert".  Note that
+# "password" sends passwords in clear text; "md5" is preferred since
+# it sends encrypted passwords.
+#
+# OPTIONS are a set of options for the authentication in the format
+# NAME=VALUE.  The available options depend on the different
+# authentication methods -- refer to the "Client Authentication"
+# section in the documentation for a list of which options are
+# available for which authentication methods.
+#
+# Database and user names containing spaces, commas, quotes and other
+# special characters must be quoted.  Quoting one of the keywords
+# "all", "sameuser", "samerole" or "replication" makes the name lose
+# its special character, and just match a database or username with
+# that name.
+#
+# This file is read on server startup and when the postmaster receives
+# a SIGHUP signal.  If you edit the file on a running system, you have
+# to SIGHUP the postmaster for the changes to take effect.  You can
+# use "pg_ctl reload" to do that.
+
+# Put your actual configuration here
+# ----------------------------------
+#
+# If you want to allow non-local connections, you need to add more
+# "host" records.  In that case you will also need to make PostgreSQL
+# listen on a non-local interface via the listen_addresses
+# configuration parameter, or via the -i or -h command line switches.
+
+
+
+
+# DO NOT DISABLE!
+# If you change this first entry you will need to make sure that the
+# database superuser can access the database using some other method.
+# Noninteractive access to all databases is required during automatic
+# maintenance (custom daily cronjobs, replication, and similar tasks).
+#
+# Database administrative login by Unix domain socket
+local   all             postgres                                peer
+
+# TYPE  DATABASE        USER            ADDRESS                 METHOD
+
+# "local" is for Unix domain socket connections only
+local   all             all                                     peer
+# IPv4 local connections:
+#host    all             all             127.0.0.1/32            md5
+# IPv6 local connections:
+#host    all             all             ::1/128                 md5
+# Allow replication connections from localhost, by a user with the
+# replication privilege.
+#local   replication     postgres                                peer
+#host    replication     postgres        127.0.0.1/32            md5
+#host    replication     postgres        ::1/128                 md5
+
+# Local connections with certs from Teleport
+hostssl zulip           zulip           127.0.0.1/32            cert
+# Zulip app frontends access the zulip user
+hostssl zulip           zulip           172.31.0.0/16           cert
+# Zulip replication accesses the replicator user
+hostssl replication     replicator      172.31.0.0/16           cert

puppet/kandra/files/postgresql/setup_data.sh

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+#!/usr/bin/env bash
+
+set -eux
+
+service postgresql stop
+
+cert_file="$(crudini --get /etc/zulip/zulip.conf postgresql ssl_cert_file)"
+if [ -z "$cert_file" ] || [ ! -f "$cert_file" ]; then
+    echo "Certificate file is not set or does not exist!"
+    exit 1
+fi
+
+key_file="$(crudini --get /etc/zulip/zulip.conf postgresql ssl_key_file)"
+if [ -z "$key_file" ] || [ ! -f "$key_file" ]; then
+    echo "Key file is not set or does not exist!"
+    exit 1
+fi
+
+cert_cn="$(openssl x509 -noout -subject -in "$cert_file" | sed -n '/^subject/s/^.*CN\s*=\s*//p')"
+
+if [ "$cert_cn" != "$(hostname)" ]; then
+    echo "Configured certificate does not match host!"
+    exit 1
+fi
+
+echo "Checking for S3 secrets..."
+crudini --get /etc/zulip/zulip-secrets.conf secrets s3_region >/dev/null
+crudini --get /etc/zulip/zulip-secrets.conf secrets s3_backups_bucket >/dev/null
+crudini --get /etc/zulip/zulip-secrets.conf secrets s3_backups_key >/dev/null
+crudini --get /etc/zulip/zulip-secrets.conf secrets s3_backups_secret_key >/dev/null
+
+if [ ! -f "/var/lib/postgresql/.postgresql/postgresql.crt" ]; then
+    echo "Replication certificate file is not set or does not exist!"
+    exit 1
+fi
+if [ ! -f "/var/lib/postgresql/.postgresql/postgresql.key" ]; then
+    echo "Replication key file is not set or does not exist!"
+    exit 1
+fi
+
+version="$(crudini --get /etc/zulip/zulip.conf postgresql version)"
+mkdir -p "/srv/data/postgresql/$version"
+chown postgres.postgres "/srv/data/postgresql/$version"
+chmod 700 "/srv/data/postgresql/$version"
+
+/usr/local/bin/env-wal-g backup-fetch "/var/lib/postgresql/$version/main" LATEST
+chown -R postgres.postgres "/var/lib/postgresql/$version/main"

puppet/kandra/files/postgresql/setup_disks.sh

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+#!/bin/bash
+set -x
+set -e
+
+set -o pipefail
+
+LOCALDISK=$(
+    nvme list -o json \
+        | jq -r '.Devices[] | select(.ModelNumber | contains("Instance Storage")) | .DevicePath' \
+        | head -n1
+)
+
+if [ -z "$LOCALDISK" ]; then
+    echo "No instance storage found!"
+    nvme list
+    exit 1
+fi
+
+if ! grep -q "$LOCALDISK" /etc/fstab; then
+    echo "$LOCALDISK   /srv/data  xfs    nofail,noatime 1 1" >>/etc/fstab
+fi
+
+if [ ! -d /srv/data ]; then
+    mkdir /srv/data
+fi
+
+if ! mountpoint -q /srv/data; then
+    mkfs.xfs "$LOCALDISK"
+    mount /srv/data
+fi
+
+if [ ! -L /var/lib/postgresql ]; then
+    service postgresql stop
+    if [ -e /var/lib/postgresql ]; then
+        mv /var/lib/postgresql "/root/postgresql-data-$(date +'%m-%d-%Y-%T')"
+    fi
+    ln -s /srv/data/postgresql/ /var/lib
+fi
+
+if [ ! -e "/srv/data/postgresql" ]; then
+    service postgresql stop
+    mkdir "/srv/data/postgresql"
+    chown postgres:postgres /srv/data/postgresql
+fi