From cca49230d9458c3393fcd739ed98623af433d9c7 Mon Sep 17 00:00:00 2001
From: Jiahao Li <isundaylee.reg@gmail.com>
Date: Thu, 30 Jul 2015 00:43:32 -0700
Subject: [PATCH] Add nginx:access-logs and nginx:error-logs.

Add two nginx subcommands to display nginx error/access logs for a particular app.
---
 plugins/nginx-vhosts/commands | 21 +++++++++++++++++++++
 plugins/nginx-vhosts/install  |  2 ++
 2 files changed, 23 insertions(+)

diff --git a/plugins/nginx-vhosts/commands b/plugins/nginx-vhosts/commands
index be64d1751..3699f25f7 100755
--- a/plugins/nginx-vhosts/commands
+++ b/plugins/nginx-vhosts/commands
@@ -159,9 +159,30 @@ EOF
       fi
     fi
     ;;
+
+  nginx:access-logs|nginx:error-logs)
+    [[ -z $2 ]] && echo "Please specify an app to run the command on" && exit 1
+    verify_app_name "$2"
+    APP="$2"
+
+    NGINX_LOGS_TYPE=${1#nginx:}
+    NGINX_LOGS_TYPE=${NGINX_LOGS_TYPE%-logs}
+    NGINX_LOGS_PATH="/var/log/nginx/$APP-$NGINX_LOGS_TYPE.log"
+
+    if [[ $3 == "-t" ]]; then
+      NGINX_LOGS_ARGS="-F"
+    else
+      NGINX_LOGS_ARGS="-n 20"
+    fi
+
+    sudo tail "$NGINX_LOGS_ARGS" "$NGINX_LOGS_PATH"
+    ;;
+
   help | nginx:help)
     cat<<EOF
     nginx:build-config <app>, (Re)builds nginx config for given app
+    nginx:access-logs <app> [-t], Show the nginx access logs for an application (-t follows)
+    nginx:error-logs <app> [-t], Show the nginx error logs for an application (-t follows)
 EOF
     ;;
 
diff --git a/plugins/nginx-vhosts/install b/plugins/nginx-vhosts/install
index c348c3b22..674b00a87 100755
--- a/plugins/nginx-vhosts/install
+++ b/plugins/nginx-vhosts/install
@@ -4,10 +4,12 @@ set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
 case "$DOKKU_DISTRO" in
   ubuntu)
     echo "%dokku ALL=(ALL) NOPASSWD:/etc/init.d/nginx reload, /usr/sbin/nginx -t" > /etc/sudoers.d/dokku-nginx
+    echo "%dokku ALL=(ALL) NOPASSWD:/usr/bin/tail" >> /etc/sudoers.d/dokku-nginx
     ;;
 
   opensuse)
     echo "%dokku ALL=(ALL) NOPASSWD:/sbin/service nginx reload, /usr/sbin/nginx -t" > /etc/sudoers.d/dokku-nginx
+    echo "%dokku ALL=(ALL) NOPASSWD:/usr/bin/tail" >> /etc/sudoers.d/dokku-nginx
     ;;
 esac