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DocumentationTencent HealthCare Omics PlatformOperation GuideImage ManagementCreate Docker Images

Create Docker Images

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Last updated: 2024-10-22 16:05:05

The Methods for Creating Container Images

There are two main methods for creating a container image:
1. Get the image through a snapshot.
2. Build the image using Dockerfile.
The first method is applicable when subsequent images do not change, and the second one is applicable when subsequent images change frequently.

Method 1: Obtain the image through a snapshot

1. Install the container engine software.
2. Start a blank basic container and enter it.
docker run -it centos
3. Perform the installation tasks:
yum install XXX
git clone https://github.com/lh3/bwa.git
cd bwa;make
4. Exit the container:
exit
5. Make a snapshot:
docker commit -m "xx" -a "test" container-id test/image:tag
6. View the created container image:
docker images

Method 2: Build the image using Dockerfile

Method 2 is applicable to situations where subsequent images are frequently changed. It automates the creation of images by executing the Dockerfile.
For example:
FROM ubuntu:latest

SHELL ["/bin/bash", "-c"]

RUN set -e \\
    && apt-get -y update \\
    && apt-get -y dist-upgrade \\
    && apt-get -y install curl build-essential libncurses5-dev zlib1g-dev libbz2-dev liblzma-dev libcurl4-openssl-dev \\
    && apt-get -y autoremove \\
    && apt-get clean \\
    && rm -rf /var/lib/apt/lists/*
# samtools

RUN set -eo pipefail \\
        && curl -SL \\
           https://github.com/samtools/samtools/releases/download/1.15/samtools-1.15.tar.bz2 \\
           -o /tmp/samtools.tar.bz2 \\
        && tar xvf /tmp/samtools.tar.bz2 -C /usr/local/src \\
        && mv /usr/local/src/samtools-* /usr/local/src/samtools \\
        && cd /usr/local/src/samtools \\
        && ./configure --prefix=/usr/local \\
        && make \\
        && make install
For more Dockerfile syntax, see Official Dockerfile Documentation.
Previous Topic: Image Repository ManagementNext Topic: Upload Docker Images to Tencent Container Image Repository (TCR)

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