71af4b4a85
using --no-cache-dir flag in pip install ,make sure downloaded packages by pip don't cached on system . This is a best practice which make sure to fetch from repo instead of using local cached one . Further , in case of Docker Containers , by restricting caching , we can reduce image size. In term of stats , it depends upon the number of python packages multiplied by their respective size . e.g for heavy packages with a lot of dependencies it reduce a lot by don't caching pip packages. Further , more detail information can be found at https://medium.com/sciforce/strategies-of-docker-images-optimization-2ca9cc5719b6 Signed-off-by: Pratik Raj <rajpratik71@gmail.com>
31 lines
1.3 KiB
Docker
31 lines
1.3 KiB
Docker
# Use imutable image tags rather than mutable tags (like ubuntu:18.04)
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FROM ubuntu:bionic-20200807
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RUN apt update -y \
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&& apt install -y \
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libssl-dev python3-dev sshpass apt-transport-https jq moreutils \
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ca-certificates curl gnupg2 software-properties-common python3-pip rsync \
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&& rm -rf /var/lib/apt/lists/*
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RUN curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add - \
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&& add-apt-repository \
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"deb [arch=amd64] https://download.docker.com/linux/ubuntu \
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$(lsb_release -cs) \
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stable" \
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&& apt update -y && apt-get install --no-install-recommends -y docker-ce \
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&& rm -rf /var/lib/apt/lists/*
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WORKDIR /kubespray
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COPY . .
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RUN /usr/bin/python3 -m pip install --no-cache-dir pip -U \
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&& /usr/bin/python3 -m pip install --no-cache-dir -r tests/requirements.txt \
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&& python3 -m pip install --no-cache-dir -r requirements.txt \
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&& update-alternatives --install /usr/bin/python python /usr/bin/python3 1
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RUN KUBE_VERSION=$(sed -n 's/^kube_version: //p' roles/kubespray-defaults/defaults/main.yaml) \
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&& curl -LO https://storage.googleapis.com/kubernetes-release/release/$KUBE_VERSION/bin/linux/amd64/kubectl \
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&& chmod a+x kubectl \
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&& mv kubectl /usr/local/bin/kubectl
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# Some tools like yamllint need this
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ENV LANG=C.UTF-8
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