From 47bda1e6d0a44f5483b3373489386e33911ba0c9 Mon Sep 17 00:00:00 2001
From: Mart124 <37041094+Mart124@users.noreply.github.com>
Date: Mon, 25 Nov 2019 14:34:47 +0100
Subject: [PATCH] Rotate nginx logs (#601)

* Rotate nginx logs

* Create logrotate.sh

* Update Dockerfile

* Update entrypoint.sh

* Update Dockerfile

* Update logrotate.sh

* No reason to disable logrotate

* Update logrotate.sh

* Update entrypoint.sh

* typo

* Avoid useless output

* Use gosu
---
 util/Nginx/Dockerfile    |  4 +++-
 util/Nginx/entrypoint.sh |  4 ++++
 util/Nginx/logrotate.sh  | 15 +++++++++++++++
 3 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 util/Nginx/logrotate.sh

diff --git a/util/Nginx/Dockerfile b/util/Nginx/Dockerfile
index eab4b87f76..362de62023 100644
--- a/util/Nginx/Dockerfile
+++ b/util/Nginx/Dockerfile
@@ -13,12 +13,14 @@ COPY proxy.conf /etc/nginx
 COPY mime.types /etc/nginx
 COPY security-headers.conf /etc/nginx
 COPY security-headers-ssl.conf /etc/nginx
+COPY logrotate.sh /
 COPY entrypoint.sh /
 
 EXPOSE 8080
 EXPOSE 8443
 
-RUN chmod +x /entrypoint.sh
+RUN chmod +x /entrypoint.sh \
+    && chmod +x /logrotate.sh
 
 HEALTHCHECK CMD curl --insecure -Lfs https://localhost:8443/alive || curl -Lfs http://localhost:8080/alive || exit 1
 
diff --git a/util/Nginx/entrypoint.sh b/util/Nginx/entrypoint.sh
index 56dd12c9e7..8c7a3d8639 100644
--- a/util/Nginx/entrypoint.sh
+++ b/util/Nginx/entrypoint.sh
@@ -41,4 +41,8 @@ chown -R $USERNAME:$GROUPNAME /var/run/nginx
 chown -R $USERNAME:$GROUPNAME /var/cache/nginx
 chown -R $USERNAME:$GROUPNAME /var/log/nginx
 
+# Launch a loop to rotate nginx logs on a daily basis
+
+gosu $USERNAME:$GROUPNAME /bin/sh -c "/logrotate.sh loop >/dev/null 2>&1 &"
+
 exec gosu $USERNAME:$GROUPNAME nginx -g 'daemon off;'
diff --git a/util/Nginx/logrotate.sh b/util/Nginx/logrotate.sh
new file mode 100644
index 0000000000..535f708915
--- /dev/null
+++ b/util/Nginx/logrotate.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+while true
+do
+  [ "$1" == "loop" ] && sleep $((24 * 3600 - (`date +%H` * 3600 + `date +%M` * 60 + `date +%S`)))
+  ts=$(date +%Y%m%d_%H%M%S)
+  mv /var/log/nginx/access.log /var/log/nginx/access.$ts.log
+  mv /var/log/nginx/error.log /var/log/nginx/error.$ts.log
+  kill -USR1 `cat /var/run/nginx/nginx.pid`
+  sleep 1
+  gzip /var/log/nginx/access.$ts.log
+  gzip /var/log/nginx/error.$ts.log
+  find /var/log/nginx/ -name "*.gz" -mtime +32 -delete
+  [ "$1" != "loop" ] && break
+done