Node 20 (Iron) and libvips-dev

[ngeorger]

I'm curious if this works here, ref: TryGhost/Ghost#20065

cc @tianon @LaurentGoderre

[LaurentGoderre]

I tried updating but the change is not in the latest version. We have to way for 5.82.9

[pascalandy]

This would need an update on the alpine Dockerfile as well.

[ngeorger]

I tried updating but the change is not in the latest version. We have to way for 5.82.9

I've been thinking to start building the images using the sources directly, not using ghost-cli, but I'm not sure if it's going to be a better and/or optimized method.

I'm proposing in the upcoming days a multistep build, this is at least what I'm confident about the overall benefits.

Here is the way I'm building it today, highly based on this original repository.

Dockerfile

# This Dockerfile is used to build a container image for running Ghost, a popular open-source blogging platform, on Kubernetes.
# The image is built with official Node 20 on Debian Bookworm (LTS Iron)  image and uses the Distroless base image for security and minimalism.

# Stage 1: Build Environment
FROM node:iron-bookworm AS build-env

ENV NODE_ENV=production DEBIAN_FRONTEND=noninteractive

USER root
RUN apt update && apt install --no-install-recommends --no-install-suggests -y libvips-dev 

# Install the latest version of Ghost CLI globally and clean the npm cache
RUN yarn config set network-timeout 60000 && \
    yarn config set inline-builds true && \
		npm config set fetch-timeout 60000 && \
    npm config set progress && \
    npm config set omit dev

RUN	yarn global add ghost-cli@latest

# Define the GHOST_VERSION build argument and set it as an environment variable
ARG GHOST_VERSION
ENV GHOST_VERSION $GHOST_VERSION 

# Set the installation directory, content directory, and original content directory for Ghost
ENV GHOST_INSTALL /var/lib/ghost
ENV GHOST_CONTENT /var/lib/ghost/content
ENV GHOST_CONTENT_ORIGINAL /var/lib/ghost/content.orig

# Create the Ghost installation directory and set the owner to the "node" user
RUN mkdir -pv "$GHOST_INSTALL" && \
    chown node:node "$GHOST_INSTALL"

# Switch to the "node" user and set the working directory to the home directory
USER node
# WORKDIR /home/node
RUN yarn config set network-timeout 180000 && \
  yarn config set inline-builds true && \
  npm config set fetch-timeout 180000 && \
  npm config set progress && \
  npm config set omit dev

# Install Ghost with the specified version, using MySQL as the database, and configure it without prompts, stack traces, setup, and in the specified installation directory
RUN ghost install $GHOST_VERSION --dir $GHOST_INSTALL --db mysql --dbhost mysql --no-prompt --no-stack --no-setup --color --process local

# Switch back to the root user
USER root

# Move the original content directory to a backup location, create a new content directory, set the correct ownership and permissions, and switch back to the "node" user
RUN mv -v $GHOST_CONTENT $GHOST_CONTENT_ORIGINAL && \
    mkdir -pv $GHOST_CONTENT && \
    chown -Rfv node:node $GHOST_CONTENT_ORIGINAL && \
    chown -Rfv node:node $GHOST_CONTENT && \
    chown -fv node:node $GHOST_INSTALL && \
    chmod 1777 $GHOST_CONTENT

# Switch back to the "node" user
USER node

# Stage 2: Final Image
FROM gcr.io/distroless/nodejs20-debian12:latest AS runtime

# Set the installation directory and content directory for Ghost
ENV GHOST_INSTALL /var/lib/ghost
ENV GHOST_CONTENT /var/lib/ghost/content
ENV GHOST_CONTENT_ORIGINAL /var/lib/ghost/content.orig

# Copy the Ghost installation directory from the build environment to the final image
COPY --from=build-env $GHOST_INSTALL $GHOST_INSTALL

# Set the working directory to the Ghost installation directory and create a volume for the content directory
# The volume is used to persist the data across container restarts, upgrades, and migrations. 
# It's going to be handled with an init container that will copy the content from your original content directory to the new content directory (If there is any)
# The CMD script will handle default themes included (Casper and Source) and init Ghost.

WORKDIR $GHOST_INSTALL
VOLUME $GHOST_CONTENT

# Copy the entrypoint script to the current Ghost version.
COPY --chown=1000:1000 entrypoint.js current/entrypoint.js


# Expose port 2368 for Ghost
EXPOSE 2368

# Set the command to start Ghost
CMD ["current/entrypoint.js"]