Efficiency improvement - encourage personalized container development environment

The background is that our company has a complex project , This project cites 27 Time submodule, use cicd The development efficiency of test environment is very slow , because cicd The clean-up space before construction is opened on , Every compilation is a huge amount git Pulling process , compile cache Will also be emptied together , So do a compilation , Twenty or thirty minutes passed , And it may only take 20 or 30 minutes to solve a development compilation error . Time is not worth the loss .

One 、Dockerfile Description file

So I had an idea . on-line cicd According to this docker Description file compiled

In vernacular, this description file ,

• Go online to download a centos7.4 Mirror image ,
• Package the compiled program in the directory zip Files in /data/app/approot Under the table of contents ,
• yum Install some allowed or necessary packages
• Then execute some subsequent commands .

Two 、 Create a mirror image image

Well, according to this document , Execute the following command

sudo docker build -t fullfish/toucan -f ./Dockerfile .

-f It specifies Dockerfile The path of ,-t Represents generated image name ,

If these steps are successful , And then you can use it docker image ls Check the just packed image

3、 ... and 、 Start the mirror

And start this image,sudo docker run -d --rm -it --entrypoint bash fullfish/toucan

Then you can use docker container ls Check this startup container example .

And then you can use it id perhaps names Enter this container,sudo docker exec -it 3bd8d0b98146 bash perhaps sudo docker exec -it silly_spence bash

And then this container Inside , We put the engineering code git download , In addition, complete the whole compilation environment . For example, my project

These necessary third-party components are missing ,

One of the more interesting things is libstdc++-static, This bag is actually very hidden , Because my code is statically compiled libstdc++, So even if there is libstdc++.so No way . This missing error will be reported in the code linkbase stage . The other is gcc-c++, This is actually centos7 Of gcc4.8 edition .

In this way, the image package is based on offline cicd Environmental Science centos7 The image package includes these necessary packages and gcc4.8 development environment .

Four 、 according to container Generate a new image

Well, I'm here too Dockerfile Improved some dependency library information . Next I'm going to put this image Share with colleagues , How to do it . That is to say, make this perfect container generating image. Then colleagues can according to this new image Make their own development environment .

use docker commit Submit this id,

sudo docker commit 3bd8d0b98146

Copy

And then use docker tag Generate a memorable name

sudo docker tag 6e939bf3a45b toucan_dev

Copy

Then colleagues can happily use the new image toucan_dev 了 , Use this image package to enter docker Development , You don't have to rely on cicd Compile and debug on