# certificate error with alternative container engines **URL:** \ **Category:** openBalena\ **Created:** [June 8, 2023, 2:56pm UTC](https://forums.balena.io/t/certificate-error-with-alternative-container-engines/368103 "2023-06-08T14:56:53Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![jjbrock1](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/jjbrock1/32/9033_2.png) [@jjbrock1](https://forums.balena.io/u/jjbrock1)\ **Post date:** [June 8, 2023, 2:56pm UTC](https://forums.balena.io/t/certificate-error-with-alternative-container-engines/368103/1 "2023-06-08T14:56:53Z")
FYI - I attempted “balena deploy” using the CLI and open-balena. I’m using podman rather than Docker desktop with the “docker” command aliased to “podman” Running “balena deploy”, I received the error: tls: failed to verify certificate: x509: certificate signed by unknown authority Details are below. I spent hours verifying and re-verifying the certificate was properly installed on the local cli machine, inspected it in my Mac’s keychain, podman machine restarted, etc, to no avail. Finally I shut down podman and started Docker desktop and all worked, no certificate error. Shut down Docker, started podman, and the error returned. Given Docker’s policy with Docker desktop, I suspect more customers will be switching to alternative (i.e. free) container machines, so balena may want to consider supporting them. % balena deploy --debug jjbApp localhost/jjbapp:latest [debug] new argv=[/usr/local/lib/balena-cli/bin/node,/usr/local/lib/balena-cli/bin/run,deploy,jjbApp,localhost/jjbapp:latest] length=5 [debug] Deprecation check: 6.16198 days since last npm registry query for next major version release date. [debug] Will not query the registry again until at least 7 days have passed. [Debug] Parsing input… [debug] Event tracking error: Timeout awaiting ‘response’ for 0ms [Debug] Loading project… [Info] Creating default composition with image: “localhost/jjbapp:latest” [Debug] Creating project… [Info] Everything is up to date (use --build to force a rebuild) [Info] Creating release… [Debug] Tagging images… [Debug] Authorizing push… [Info] Pushing images to registry… Retrying “registry.balena.brockman.tech/v2/dc283edb4989754ce4628b9107e18ec6:latest” after 2.0s (1 of 2) due to: Error: trying to reuse blob sha256:04f11cf5fdd8db852f2ae6ebbf3a1e269bee6f2f374ddb7ab091c259286f7896 at destination: pinging container registry registry.balena.brockman.tech: Get “[https://registry.balena.brockman.tech/v2/](https://registry.balena.brockman.tech/v2/)”: tls: failed to verify certificate: x509: certificate signed by unknown authority Retrying “registry.balena.brockman.tech/v2/dc283edb4989754ce4628b9107e18ec6:latest” after 2.8s (2 of 2) due to: Error: trying to reuse blob sha256:04f11cf5fdd8db852f2ae6ebbf3a1e269bee6f2f374ddb7ab091c259286f7896 at destination: pinging container registry registry.balena.brockman.tech: Get “[https://registry.balena.brockman.tech/v2/](https://registry.balena.brockman.tech/v2/)”: tls: failed to verify certificate: x509: certificate signed by unknown authority [Debug] Saving image registry.balena.brockman.tech/v2/dc283edb4989754ce4628b9107e18ec6 [Debug] Untagging images… [Info] Saving release… [Error] Deploy failed trying to reuse blob sha256:04f11cf5fdd8db852f2ae6ebbf3a1e269bee6f2f374ddb7ab091c259286f7896 at destination: pinging container registry registry.balena.brockman.tech: Get “[https://registry.balena.brockman.tech/v2/](https://registry.balena.brockman.tech/v2/)”: tls: failed to verify certificate: x509: certificate signed by unknown authority Error: trying to reuse blob sha256:04f11cf5fdd8db852f2ae6ebbf3a1e269bee6f2f374ddb7ab091c259286f7896 at destination: pinging container registry registry.balena.brockman.tech: Get “[https://registry.balena.brockman.tech/v2/](https://registry.balena.brockman.tech/v2/)”: tls: failed to verify certificate: x509: certificate signed by unknown authority at Stream. (/usr/local/lib/balena-cli/node\_modules/docker-progress/build/index.js:31:27) at Stream.emit (node:events:513:28) at Stream.emit (node:domain:489:12) at drain (/usr/local/lib/balena-cli/node\_modules/through/index.js:36:16) at Stream.stream.queue.stream.push (/usr/local/lib/balena-cli/node\_modules/through/index.js:45:5) at Parser.parser.onToken (/usr/local/lib/balena-cli/node\_modules/JSONStream/index.js:132:18) at Parser.proto.write (/usr/local/lib/balena-cli/node\_modules/jsonparse/jsonparse.js:135:34) at Stream. (/usr/local/lib/balena-cli/node\_modules/JSONStream/index.js:23:12) at Stream.stream.write (/usr/local/lib/balena-cli/node\_modules/through/index.js:26:11) at IncomingMessage.ondata (node:internal/streams/readable:754:22) at IncomingMessage.emit (node:events:513:28) at IncomingMessage.emit (node:domain:489:12) at addChunk (node:internal/streams/readable:315:12) at readableAddChunk (node:internal/streams/readable:289:9) at IncomingMessage.Readable.push (node:internal/streams/readable:228:10) at HTTPParser.parserOnBody (node:\_http\_common:140:24) For further help or support, visit: > **[balena CLI Documentation - Balena Documentation](https://docs.balena.io/reference/balena-cli/)**