* Allow container.image to be null/empty * Remove unnecessary workflow type * Update src/Sdk/DTPipelines/Pipelines/ObjectTemplating/PipelineTemplateConverter.cs Co-authored-by: Ferenc Hammerl <[email protected]> * Rename ConvertToJobContainer to ConvertToContainer It converts serviceContainers too * Remove unused parameter AllowExpressions was always false * Allow service in yaml with empty string for value * Don't attempt to start services without an image * Improve error messages * Revert "Remove unused parameter" This reverts commitf4ab2d50d0. * Revert "Rename ConvertToJobContainer to ConvertToContainer" This reverts commitffc62f8343. * Fix revert merge conflict * Removed info logs * Added info log for services without container images Co-authored-by: moonblade <[email protected]> Co-authored-by: Ferenc Hammerl <[email protected]> Co-authored-by: Ava Stancu <[email protected]>