From 89712b5b3b3be6a6c09ecb91434eb593341b5748 Mon Sep 17 00:00:00 2001
From: Stefan Schwarz <stefan@f2o.io>
Date: Fri, 8 Jan 2021 22:42:20 +0100
Subject: [PATCH] provide a docker image

---
 .dockerignore        |  1 +
 docker/Dockerfile    | 30 +++++++++++++++++++++++++
 docker/README.md     | 52 ++++++++++++++++++++++++++++++++++++++++++++
 docker/autoconfig.py | 41 ++++++++++++++++++++++++++++++++++
 docker/init.sh       | 12 ++++++++++
 5 files changed, 136 insertions(+)
 create mode 100644 .dockerignore
 create mode 100644 docker/Dockerfile
 create mode 100644 docker/README.md
 create mode 100644 docker/autoconfig.py
 create mode 100755 docker/init.sh

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 00000000..9a4b4058
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1 @@
+docker/Dockerfile
diff --git a/docker/Dockerfile b/docker/Dockerfile
new file mode 100644
index 00000000..1bbd5ab1
--- /dev/null
+++ b/docker/Dockerfile
@@ -0,0 +1,30 @@
+FROM python:3.9-slim AS builder
+
+RUN true \
+  && mkdir /app \
+  && apt update \
+  && apt install --no-install-recommends -y git \
+  && python -m venv /app/env \
+  && /app/env/bin/pip install wheel gunicorn
+
+ADD . /usr/local/src/bepasty
+RUN /app/env/bin/pip install /usr/local/src/bepasty
+
+# ---
+
+FROM python:3.9-slim
+
+RUN true \
+  && mkdir /app \
+  && adduser -u 17357 --system --home /app/data --disabled-login --disabled-password paste
+
+ADD docker/init.sh /usr/local/bin/init.sh
+COPY --from=builder /app/env /app/env
+
+ENV WORKERS 4
+ENV LISTEN 0.0.0.0:8000
+ENV BEPASTY_CONFIG /etc/bepasty.conf
+ADD docker/autoconfig.py /etc/bepasty.conf
+
+USER paste
+CMD /usr/local/bin/init.sh
diff --git a/docker/README.md b/docker/README.md
new file mode 100644
index 00000000..3e0fab52
--- /dev/null
+++ b/docker/README.md
@@ -0,0 +1,52 @@
+# bepasty Docker image
+
+A Docker image that provides very basic configuration via environment variables.
+
+**Notes**
+
+* For a more advanced configuration mount a custom configuration to
+  `/etc/bepasty.conf`.
+* All data will be owned by UID 117356, to change this you can use the
+  `--user <uid>` option from `docker run`.
+
+## Quickstart
+
+```sh
+# build from the repository root
+docker build -f docker/Dockerfile -t bepasty .
+
+# create datadir
+mkdir data
+sudo chown 17357:0 data
+
+# run
+docker run -it \
+   -p 8000:8000 \
+   -v $PWD/data:/app/data \
+   -e BEPASTY_SECRET_KEY=$(openssl rand -hex 16) \
+   -e BEPASTY_SITENAME=localhost bepasty
+
+# visit http://localhost:8000
+```
+
+## Docker image environment variables
+
+* `WORKERS`: Number of Gunicorn workers (default: `4`)
+* `LISTEN`: IP and address to listen on (default: `0.0.0.0:8000`)
+* `BEPASTY_CONFIG`: Path to bepasty configuration (default: `/etc/bepasty.conf`)
+
+## Bepasty environment variables
+
+These match the bepasty options described [here][1]
+
+* `BEPASTY_SITENAME` (**required**)
+* `BEPASTY_APP_BASE_PATH` 
+* `BEPASTY_APP_STORAGE_FILESYSTEM_DIRECTORY`
+* `BEPASTY_DEFAULT_PERMISSIONS`
+* `BEPASTY_ADMIN_SECRET`
+* `BEPASTY_SECRET_KEY`
+* `BEPASTY_MAX_ALLOWED_FILE_SIZE`
+* `BEPASTY_MAX_BODY_SIZE`
+
+[1]: https://bepasty-server.readthedocs.io/en/latest/quickstart.html#configuring-bepasty
+
diff --git a/docker/autoconfig.py b/docker/autoconfig.py
new file mode 100644
index 00000000..92c83bb9
--- /dev/null
+++ b/docker/autoconfig.py
@@ -0,0 +1,41 @@
+#!/usr/bin/python
+
+import os
+import sys
+
+SITENAME = os.environ.get("BEPASTY_SITENAME", None)
+if SITENAME is None:
+    print("\n\nEnvironment variable BEPASTY_SITENAME must be set.")
+    sys.exit(1)
+
+SECRET_KEY = os.environ.get("BEPASTY_SECRET_KEY", None)
+if SECRET_KEY is None:
+    print("\n\nEnvironment variable BEPASTY_SECRET_KEY must be set.")
+    sys.exit(1)
+
+APP_BASE_PATH = os.environ.get("BEPASTY_APP_BASE_PATH", None)
+
+STORAGE_FILESYSTEM_DIRECTORY = os.environ.get(
+    "BEPASTY_STORAGE_FILESYSTEM_DIRECTORY", "/app/data",
+)
+
+DEFAULT_PERMISSIONS = os.environ.get("BEPASTY_DEFAULT_PERMISSIONS", "create,read")
+
+PERMISSIONS = {}
+admin_secret = os.environ.get("BEPASTY_ADMIN_SECRET", None)
+if admin_secret is not None:
+    PERMISSIONS.update({admin_secret: "admin,list,create,modify,read,delete"})
+
+try:
+    max_allowed_file_size = os.environ.get("BEPASTY_MAX_ALLOWED_FILE_SIZE", 5000000000)
+    MAX_ALLOWED_FILE_SIZE = int(max_allowed_file_size)
+except ValueError as err:
+    print("\n\nInvalid BEPASTY_MAX_ALLOWED_FILE_SIZE: %s", str(err))
+    sys.exit(1)
+
+try:
+    max_body_size = os.environ.get("BEPASTY_MAX_BODY_SIZE", 1040384)
+    MAX_BODY_SIZE = int(max_body_size)
+except ValueError as err:
+    print("\n\nInvalid BEPASTY_MAX_BODY_SIZE: %s", str(err))
+    sys.exit(1)
diff --git a/docker/init.sh b/docker/init.sh
new file mode 100755
index 00000000..7a6a3261
--- /dev/null
+++ b/docker/init.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+if [ ! -f "$BEPASTY_CONFIG" ]; then
+    echo "Please please mount a configuration file to '$BEPASTY_CONFIG'."
+    exit 1
+fi
+
+if ! python "$BEPASTY_CONFIG"; then
+    exit 1
+fi
+
+exec /app/env/bin/gunicorn -b "$LISTEN" --workers="$WORKERS" bepasty.wsgi:application