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#
# Glances Dockerfile (based on Alpine)
#
# https://github.com/nicolargo/glances
#
# WARNING: the versions should be set.
# Ex: Python 3.10 for Alpine 3.16
# Note: ENV is for future running containers. ARG for building your Docker image.
ARG IMAGE_VERSION=3.16
ARG PYTHON_VERSION=3.10
FROM alpine:${IMAGE_VERSION} as build
ARG PYTHON_VERSION
RUN apk add --no-cache \
python3 \
python3-dev \
py3-pip \
py3-wheel \
musl-dev \
linux-headers \
build-base \
libzmq \
zeromq-dev \
curl \
lm-sensors \
wireless-tools \
iputils
##############################################################################
# Install the dependencies beforehand to make them cacheable
FROM build as buildRequirements
ARG PYTHON_VERSION
COPY requirements.txt .
RUN pip3 install --no-cache-dir --user -r requirements.txt
# As minimal image we want to monitor others docker containers
RUN pip3 install --no-cache-dir --user docker
# Force install otherwise it could be cached without rerun
ARG CHANGING_ARG
RUN pip3 install --no-cache-dir --user glances
##############################################################################
FROM build as buildOptionalRequirements
ARG PYTHON_VERSION
COPY requirements.txt .
COPY optional-requirements.txt .
RUN CASS_DRIVER_NO_CYTHON=1 pip3 install --no-cache-dir --user -r optional-requirements.txt
##############################################################################
# full image
##############################################################################
FROM build as full
ARG PYTHON_VERSION
COPY --from=buildRequirements /root/.local/bin /usr/local/bin/
COPY --from=buildRequirements /root/.local/lib/python${PYTHON_VERSION}/site-packages /usr/lib/python${PYTHON_VERSION}/site-packages/
COPY --from=buildOptionalRequirements /root/.local/lib/python${PYTHON_VERSION}/site-packages /usr/lib/python${PYTHON_VERSION}/site-packages/
COPY ./docker-compose/glances.conf /etc/glances.conf
# EXPOSE PORT (XMLRPC / WebUI)
EXPOSE 61209 61208
WORKDIR /glances
# Define default command.
CMD python3 -m glances -C /etc/glances.conf $GLANCES_OPT
##############################################################################
# minimal image
##############################################################################
# Create running images without any building dependency
FROM alpine:${IMAGE_VERSION} as minimal
ARG PYTHON_VERSION
RUN apk add --no-cache \
python3 \
curl \
lm-sensors \
wireless-tools \
iputils
COPY --from=buildRequirements /root/.local/bin /usr/local/bin/
COPY --from=buildRequirements /root/.local/lib/python${PYTHON_VERSION}/site-packages /usr/lib/python${PYTHON_VERSION}/site-packages/
COPY ./docker-compose/glances.conf /etc/glances.conf
# EXPOSE PORT (XMLRPC only because WebUI is not available)
EXPOSE 61209
# Define default command.
CMD python3 -m glances -C /etc/glances.conf $GLANCES_OPT
##############################################################################
# dev image
##############################################################################
FROM full as dev
ARG PYTHON_VERSION
COPY --from=buildRequirements /root/.local/bin /usr/local/bin/
COPY --from=buildRequirements /root/.local/lib/python${PYTHON_VERSION}/site-packages /usr/lib/python${PYTHON_VERSION}/site-packages/
COPY --from=buildOptionalRequirements /root/.local/lib/python${PYTHON_VERSION}/site-packages /usr/lib/python${PYTHON_VERSION}/site-packages/
COPY ./docker-compose/glances.conf /etc/glances.conf
# Copy the current Glances source code
COPY . /glances
# EXPOSE PORT (XMLRPC / WebUI)
EXPOSE 61209 61208
# Forward access and error logs to Docker's log collector
RUN ln -sf /dev/stdout /tmp/glances-root.log \
&& ln -sf /dev/stderr /var/log/error.log
WORKDIR /glances
# Define default command.
CMD python3 -m glances -C /etc/glances.conf $GLANCES_OPT
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