Enhancement: Retry count should be 0 or omitted with "no" policy

[jasonjoo2010]

Background

In business the restart policy needs to be set to no.

Result Expected

Success.

Result Actual

Fail with: maximum retry count could be used with policy "no".

Related Code

container.go:58

// set restart always
restartRetryCount := 3
if opts.RestartPolicy == restartAlways {
    restartRetryCount = 0
}

The retry count should be 0 when using no policy or just omit it.

Workaround

Currently a workaround works that is setting policy to empty instead of setting it to no explicitly. Better to fix it in future in core.

[CMGS]

这里需要屏蔽 restart 逻辑，抽象成 eru 的 restart 逻辑