Proposed changes

There are multiple changes introduced in this PR

• I check if the image exists before downloading the new image Issue skip image download if same image is running #397
• Unified HTTP client usage in the agent and daemon.
  This is the how the image download and validation process works

Download and Validate Image

flowchart TD
    A[downloadAndValidate] ---> B{Does the file file exist}
    B --->|Yes| C[Does the Checksum Match?]
    C ---> D[End]
    B --->|No| E[Download file]
    E ---> F[Match checksum]
    F ---> End

File Path: "Artifacts_PATH/file_name" - ARTIFACTS_PATH points to /tmp

HTTPClient Unification

Now an agent receives an instantiated client which makes all the http requests.Currently it configured to be not validate the server certificate.Injecting the httpclient allows us to test out the api client.

Types of changes

What types of changes does your code introduce to the repo? Put an x in the boxes that apply

• New feature (non-breaking change which adds functionality)
• Bugfix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices applies)

Checklist

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• I have signed the commit for DCO to be passed.
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works (if appropriate)
• I have added necessary documentation (if appropriate)