+1 for hadolint. There's also https://github.com/goodwithtech/dockle https://github.com/goodwithtech/dockle and https://github.com/aquasecurity/trivy https://gi

+1 for hadolint. There's also https://github.com/goodwithtech/dockle https://github.com/goodwithtech/dockle and https://github.com/aquasecurity/trivy https://github.com/aquasecurity/trivy if you want more security emphasis.