Docker V0 and V1 store build output in temp file

[jcfiorenzano]

Task name: Docker

Description: the build command is going to store the output of docker in a temp file and is going to store its path in an output variable

Added unit tests: N

Attached related issue: #14537

Checklist:

• Task version was bumped - please check instruction how to do it
• Checked that applied changes work as expected

[jcfiorenzano]

Hi @ajinkya599 this is the result of this PR running in a pipeline:

DockerV0:

Variable set:

File content:

Sending build context to Docker daemon  66.05kB

Step 1/1 : FROM ubuntu:16.04
 ---> aefd7f02ae24
Successfully built aefd7f02ae24
Successfully tagged test-docker:31
SECURITY WARNING: You are building a Docker image from Windows against a non-Windows Docker host. All files and directories added to build context will have '-rwxr-xr-x' permissions. It is recommended to double check and reset permissions for sensitive files and directories.

Use 'docker scan' to run Snyk tests against images to find vulnerabilities and learn how to fix them

DockerV1:

Variable set:

File content:

Sending build context to Docker daemon  66.05kB

Step 1/3 : FROM ubuntu:16.04
 ---> aefd7f02ae24
Step 2/3 : LABEL me.vsts.contoso.image.build.sourceversion=e7fa3b0c53bdb6c480f2140f1a9e9f20a0f215e6
 ---> Running in 75e53052d909
Removing intermediate container 75e53052d909
 ---> 281c21efe972
Step 3/3 : LABEL me.vsts.contoso.image.system.teamfoundationcollectionuri=https://contoso.vsts.me/
 ---> Running in 789e7afd6cc9
Removing intermediate container 789e7afd6cc9
 ---> 5288a4f2f801
Successfully built 5288a4f2f801
Successfully tagged test-docker:32
SECURITY WARNING: You are building a Docker image from Windows against a non-Windows Docker host. All files and directories added to build context will have '-rwxr-xr-x' permissions. It is recommended to double check and reset permissions for sensitive files and directories.

Use 'docker scan' to run Snyk tests against images to find vulnerabilities and learn how to fix them

[ajinkya599]

🚀

[alexander-smolyakov]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 4 pipeline(s).

[ajinkya599]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 4 pipeline(s).