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revert: remove custom base image dependency from main Dockerfile

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Reverted k8s/Dockerfile back to using official hexpm/elixir and debian
images directly instead of custom gmcintire/towerops-base images.

This restores the original Dockerfile behavior where all dependencies
are installed during each build. The base image work in k8s/base-image/
remains available but is not used by the main application build.
This commit is contained in:
Graham McIntire 2026-01-25 11:12:37 -06:00
parent 788004cb97
commit 81f13f789b
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1 changed files with 33 additions and 14 deletions
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k8s/Dockerfile
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@ -17,18 +17,27 @@ ARG ELIXIR_VERSION=1.19.4
ARG OTP_VERSION=28.3
ARG DEBIAN_VERSION=trixie-20251229-slim
# Use custom base images with pre-installed dependencies for faster builds
ARG BUILDER_IMAGE="docker.io/gmcintire/towerops-base:builder"
ARG RUNNER_IMAGE="docker.io/gmcintire/towerops-base:runtime"
ARG BUILDER_IMAGE="docker.io/hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
ARG RUNNER_IMAGE="docker.io/debian:${DEBIAN_VERSION}"
FROM ${BUILDER_IMAGE} AS builder
ENV MIX_OS_DEPS_COMPILE_PARTITION_COUNT=6
# Base image already has:
# - build-essential and git installed
# - hex and rebar installed
# - MIX_OS_DEPS_COMPILE_PARTITION_COUNT=6
# - MIX_ENV="prod"
# - WORKDIR /app
# install build dependencies
RUN apt-get update \
&& DEBIAN_FRONTEND=noninteractive apt-get upgrade -y \
&& DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends build-essential git \
&& rm -rf /var/lib/apt/lists/*
# prepare build dir
WORKDIR /app
# install hex + rebar
RUN mix local.hex --force \
&& mix local.rebar --force
# set build ENV
ENV MIX_ENV="prod"
# install mix dependencies
COPY mix.exs mix.lock ./
@ -71,11 +80,21 @@ RUN mix release
# the compiled release and other runtime necessities
FROM ${RUNNER_IMAGE} AS final
# Base image already has:
# - All runtime dependencies installed (libstdc++6, openssl, libncurses6, locales, ca-certificates, iputils-ping)
# - Locale configured (en_US.UTF-8)
# - /app directory created and owned by nobody
# - WORKDIR "/app"
RUN apt-get update \
&& DEBIAN_FRONTEND=noninteractive apt-get upgrade -y \
&& DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends libstdc++6 openssl libncurses6 locales ca-certificates iputils-ping \
&& rm -rf /var/lib/apt/lists/*
# Set the locale
RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen \
&& locale-gen
ENV LANG=en_US.UTF-8
ENV LANGUAGE=en_US:en
ENV LC_ALL=en_US.UTF-8
WORKDIR "/app"
RUN chown nobody /app
# set runner ENV
ENV MIX_ENV="prod"