From 42be2693c5073726efd9977bcc02d1029cd8fbd2 Mon Sep 17 00:00:00 2001
From: Rizky Maulana Nugraha <lana.pcfre@gmail.com>
Date: Fri, 1 Feb 2019 21:16:59 +0700
Subject: [PATCH] Implement conf lock file check (#116)

It will make sure that the conf file will only be generated once
for a given container.
---
 .dockerignore   |  1 +
 setup-conf.sh   |  7 +++++++
 setup-pg_hba.sh |  8 ++++++++
 setup-ssl.sh    | 10 +++++++++-
 4 files changed, 25 insertions(+), 1 deletion(-)
 create mode 120000 .dockerignore

diff --git a/.dockerignore b/.dockerignore
new file mode 120000
index 0000000..3e4e48b
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1 @@
+.gitignore
\ No newline at end of file
diff --git a/setup-conf.sh b/setup-conf.sh
index b5cf4b3..6de4912 100644
--- a/setup-conf.sh
+++ b/setup-conf.sh
@@ -2,6 +2,11 @@
 
 source /env-data.sh
 
+SETUP_LOCKFILE="${ROOT_CONF}/.postgresql.conf.lock"
+if [ -f "${SETUP_LOCKFILE}" ]; then
+	return 0
+fi
+
 # This script will setup necessary configuration to enable replications
 
 # Refresh configuration in case environment settings changed.
@@ -32,3 +37,5 @@ EOF
 echo "kernel.shmmax=543252480" >> /etc/sysctl.conf
 echo "kernel.shmall=2097152" >> /etc/sysctl.conf
 
+# Put lock file to make sure conf was not reinitialized
+touch ${SETUP_LOCKFILE}
diff --git a/setup-pg_hba.sh b/setup-pg_hba.sh
index 69e46eb..d271f77 100644
--- a/setup-pg_hba.sh
+++ b/setup-pg_hba.sh
@@ -2,6 +2,11 @@
 
 source /env-data.sh
 
+SETUP_LOCKFILE="${ROOT_CONF}/.pg_hba.conf.lock"
+if [ -f "${SETUP_LOCKFILE}" ]; then
+	return 0
+fi
+
 # This script will setup pg_hba.conf
 
 # Reconfigure pg_hba if environment settings changed
@@ -46,3 +51,6 @@ if [[ -z "$REPLICATE_FROM" ]]; then
 	echo "Add rule to pg_hba: replication user"
 	echo "host replication all 0.0.0.0/0 $authMethod" >> ${ROOT_CONF}/pg_hba.conf
 fi
+
+# Put lock file to make sure conf was not reinitialized
+touch ${SETUP_LOCKFILE}
diff --git a/setup-ssl.sh b/setup-ssl.sh
index b9844e7..50eae85 100644
--- a/setup-ssl.sh
+++ b/setup-ssl.sh
@@ -2,6 +2,11 @@
 
 source /env-data.sh
 
+SETUP_LOCKFILE="${ROOT_CONF}/.ssl.conf.lock"
+if [ -f "${SETUP_LOCKFILE}" ]; then
+	return 0
+fi
+
 # This script will setup default SSL config
 
 # /etc/ssl/private can't be accessed from within container for some reason
@@ -23,4 +28,7 @@ echo "ssl = true" >> $CONF
 echo "ssl_cert_file = '/etc/ssl/certs/ssl-cert-snakeoil.pem'" >> $CONF
 echo "ssl_key_file = '/etc/ssl/private/ssl-cert-snakeoil.key'" >> $CONF
 #echo "ssl_ca_file = ''                       # (change requires restart)" >> $CONF
-#echo "ssl_crl_file = ''" >> $CONF
\ No newline at end of file
+#echo "ssl_crl_file = ''" >> $CONF
+
+# Put lock file to make sure conf was not reinitialized
+touch ${SETUP_LOCKFILE}