From d37a1455b7eec05bf4cb0ccb727aab318186427d Mon Sep 17 00:00:00 2001
From: Revant Nandgaonkar <revant.one@gmail.com>
Date: Sat, 20 Mar 2021 13:57:53 +0530
Subject: [PATCH 1/2] feat(frappe-worker): option to set gevent as gunicorn
 worker-class

---
 build/common/commands/gevent_patch.py    |  2 ++
 build/common/worker/docker-entrypoint.sh | 21 +++++++++++++++------
 build/frappe-worker/Dockerfile           |  2 ++
 3 files changed, 19 insertions(+), 6 deletions(-)
 create mode 100644 build/common/commands/gevent_patch.py

diff --git a/build/common/commands/gevent_patch.py b/build/common/commands/gevent_patch.py
new file mode 100644
index 00000000..9d7cc3c3
--- /dev/null
+++ b/build/common/commands/gevent_patch.py
@@ -0,0 +1,2 @@
+import gevent.monkey
+gevent.monkey.patch_all()
diff --git a/build/common/worker/docker-entrypoint.sh b/build/common/worker/docker-entrypoint.sh
index 9b170c59..a3082442 100755
--- a/build/common/worker/docker-entrypoint.sh
+++ b/build/common/worker/docker-entrypoint.sh
@@ -84,17 +84,26 @@ if [ "$1" = 'start' ]; then
     export FRAPPE_PORT=8000
   fi
 
+  if [[ -z "$WORKER_CLASS" ]]; then
+    export WORKER_CLASS=gthread
+  fi
+
+  export LOAD_CONFIG_FILE=""
+  if [ "$WORKER_CLASS" = "gevent" ]; then
+    export LOAD_CONFIG_FILE="-c /home/frappe/frappe-bench/commands/gevent_patch.py"
+  fi
+
   if [[ ! -z "$AUTO_MIGRATE" ]]; then
     . /home/frappe/frappe-bench/env/bin/activate \
       && python /home/frappe/frappe-bench/commands/auto_migrate.py
   fi
 
   . /home/frappe/frappe-bench/env/bin/activate
-  gunicorn -b 0.0.0.0:$FRAPPE_PORT \
+  gunicorn $LOAD_CONFIG_FILE -b 0.0.0.0:$FRAPPE_PORT \
     --worker-tmp-dir /dev/shm \
     --threads=4 \
     --workers $WORKERS \
-    --worker-class=gthread \
+    --worker-class=$WORKER_CLASS \
     --log-file=- \
     -t 120 frappe.app:application --preload
 
@@ -102,21 +111,21 @@ elif [ "$1" = 'worker' ]; then
   checkConfigExists
   checkConnection
   # default WORKER_TYPE=default
-  
+
   . /home/frappe/frappe-bench/env/bin/activate
   python /home/frappe/frappe-bench/commands/worker.py
 
 elif [ "$1" = 'schedule' ]; then
   checkConfigExists
   checkConnection
-  
+
   . /home/frappe/frappe-bench/env/bin/activate
   python /home/frappe/frappe-bench/commands/background.py
 
 elif [ "$1" = 'new' ]; then
   checkConfigExists
   checkConnection
-  
+
   . /home/frappe/frappe-bench/env/bin/activate
   python /home/frappe/frappe-bench/commands/new.py
   exit
@@ -124,7 +133,7 @@ elif [ "$1" = 'new' ]; then
 elif [ "$1" = 'drop' ]; then
   checkConfigExists
   checkConnection
-  
+
   . /home/frappe/frappe-bench/env/bin/activate
   python /home/frappe/frappe-bench/commands/drop.py
   exit
diff --git a/build/frappe-worker/Dockerfile b/build/frappe-worker/Dockerfile
index f089ff33..3e8313e6 100644
--- a/build/frappe-worker/Dockerfile
+++ b/build/frappe-worker/Dockerfile
@@ -65,6 +65,8 @@ RUN mkdir -p apps logs commands sites /home/frappe/backups
 # Setup python environment
 RUN python -m venv env \
     && . env/bin/activate \
+    && pip3 install --upgrade pip \
+    && pip3 install gevent \
     && cd apps \
     && git clone --depth 1 -o upstream https://github.com/frappe/frappe --branch ${GIT_BRANCH} \
     && pip3 install --no-cache-dir -e /home/frappe/frappe-bench/apps/frappe

From 261288fa8cede7511996c3215581b9e6be4972c0 Mon Sep 17 00:00:00 2001
From: Revant Nandgaonkar <revant.one@gmail.com>
Date: Sat, 20 Mar 2021 15:09:08 +0530
Subject: [PATCH 2/2] docs: env variable gunicorn worker-class

[skip travis]
---
 docs/environment-variables.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/docs/environment-variables.md b/docs/environment-variables.md
index a1c105aa..09d5654b 100644
--- a/docs/environment-variables.md
+++ b/docs/environment-variables.md
@@ -10,6 +10,7 @@ Following environment variables are set into sites volume as `common_site_config
 - `REDIS_QUEUE`: Redis queue host, domain name or ip address.
 - `REDIS_SOCKETIO`: Redis queue host, domain name or ip address.
 - `SOCKETIO_PORT: `: Port on which the SocketIO should start.
+- `WORKER_CLASS`: Optionally set gunicorn worker-class. Supports gevent only, defaults to gthread.
 
 ### frappe-nginx and erpnext-nginx