Optimize Dockerfiles for faster and smaller builds #350 (#354)

Signed-off-by: Thomas Druez <[email protected]>

.dockerignore

@@ -0,0 +1,26 @@
+**/.git
+**/.gitignore
+**/.github
+**/.vscode
+**/.idea
+**/coverage
+**/.aws
+**/.ssh
+**/.DS_Store
+**/venv
+**/env
+**/bin
+**/docs
+**/dist
+**/etc
+**/lib
+**/var
+**/*.egg-info
+.dockerignore
+.readthedocs.yaml
+docker.env
+CHANGELOG.rst
+Dockerfile
+README.rst
+docker-compose.yml
+pyvenv.cfg

Dockerfile

@@ -22,12 +22,15 @@
 
 FROM python:3.9
 
+WORKDIR /app
+
 ENV PYTHONUNBUFFERED 1
 ENV PYTHONDONTWRITEBYTECODE 1
 
-# Requirements as per https://scancode-toolkit.readthedocs.io/en/latest/getting-started/install.html
+# OS requirements as per
+# https://scancode-toolkit.readthedocs.io/en/latest/getting-started/install.html
 RUN apt-get update \
- && apt-get install -y \
+ && apt-get install -y --no-install-recommends \
  bzip2 \
  xz-utils \
  zlib1g \
@@ -44,10 +47,11 @@ RUN apt-get update \
  && apt-get clean \
  && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
-RUN mkdir /opt/scancodeio/ \
- && mkdir -p /var/scancodeio/static/ \
+RUN mkdir -p /var/scancodeio/static/ \
  && mkdir -p /var/scancodeio/workspace/
 
-COPY . /opt/scancodeio/
-WORKDIR /opt/scancodeio/
+# Keep the dependencies installation before the COPY of the app/ for proper caching
+COPY setup.cfg setup.py /app/
 RUN pip install .
+
+COPY . /app

docker-compose.yml

@@ -22,7 +22,6 @@ services:
  expose:
  - 8000
  volumes:
- - .:/opt/scancodeio/
  - /etc/scancodeio/:/etc/scancodeio/
  - workspace:/var/scancodeio/workspace/
  - static:/var/scancodeio/static/
@@ -35,7 +34,6 @@ services:
  env_file:
  - docker.env
  volumes:
- - .:/opt/scancodeio/
  - /etc/scancodeio/:/etc/scancodeio/
  - workspace:/var/scancodeio/workspace/
  depends_on:

scancodeio/__init__.py

@@ -30,8 +30,9 @@
 SCAN_NOTICE = Path(__file__).resolve().parent.joinpath("scan.NOTICE").read_text()
 
 
-# Turn off the warnings from the `parameter_expansion` module.
+# Turn off the warnings from the `parameter_expansion` and `cluecode` modules.
 warnings.filterwarnings("ignore", module="parameter_expansion")
+warnings.filterwarnings("ignore", module="cluecode")
 
 
 def command_line():