Failure to build Dockerfile remotely


I am having problems with building a Docker based app remotely.

❯ LOG_LEVEL=debug fly deploy --app <app-name> --remote-only
DEBUG cache loaded.
DEBUG config initialized.
DEBUG initialized task manager.
DEBUG skipped querying for new release
DEBUG client initialized.
DEBUG app config loaded from /path/to/fly.toml
==> Verifying app config
--> Verified app config
==> Building image
DEBUG trying remote docker daemon
DEBUG Reporting buildDEBUG --> POST {{"query":"mutation($input: StartSourceBuildInput!) { startSourceBuild(input: $input) { sourceBuild { id } } }","variables":{"input":{"appId":"<app-name>"}}}
DEBUG <-- 200 (391.62ms) {"errors":[{"message":"StartSourceBuildInput isn't a defined input type (on $input)","locations":[{"line":1,"column":10}],"path":["mutation"],"extensions":{"code":"variableRequiresValidType","typeName":"StartSourceBuildInput","variableName":"input"}},{"message":"Field 'startSourceBuild' doesn't exist on type 'Mutations'","locations":[{"line":1,"column":44}],"path":["mutation","startSourceBuild"],"extensions":{"code":"undefinedField","typeName":"Mutations","fieldName":"startSourceBuild"}},{"message":"Variable $input is declared by anonymous mutation but not used","locations":[{"line":1,"column":1}],"path":["mutation"],"extensions":{"code":"variableNotUsed","variableName":"input"}}]}
DEBUG Failed storing buildDEBUG Trying 'Buildpacks' strategy
DEBUG no buildpack builder configured, skipping
DEBUG result image:<nil> error:<nil>
DEBUG Trying 'Dockerfile' strategy
DEBUG --> POST {{"query":"mutation($input: EnsureMachineRemoteBuilderInput!) { ensureMachineRemoteBuilder(input: $input) { machine { id state ips { nodes { family kind ip } } }, app { name organization { slug } } } }","variables":{"input":{"appName":"<app-name>","organizationId":null}}}
DEBUG <-- 500 (208.24ms) {"errors":[{"message":"An unknown error occured.","extensions":{"code":"SERVER_ERROR"}}],"data":{}}
DEBUG result image:<nil> error:error connecting to docker: An unknown error occured.
Error failed to fetch an image or build from source: error connecting to docker: An unknown error occured.

Is there something wrong with the request? Local build does work.

I see this error in our exception tracking. Did this happen the first time you attempted a deploy or on a second or later?

Also, will you give it another try?

@kurt it didn’t happen the first few times. I will retry and report