Module 2 Build phase...

[davekindof]

When I attempt to update the build via the CI/CD, it gets to the build phase but fails on on step 1/13

Container] 2023/08/28 19:16:45 Running command echo Building the Docker image...

36 | Building the Docker image...
37 |  
38 | [Container] 2023/08/28 19:16:45 Running command docker build -t mythicalmysfits/service:latest .
39 | Sending build context to Docker daemon 14.85kB
40 |  
41 | Step 1/13 : FROM ubuntu:latest
42 | missing signature key
43 |  
44 | [Container] 2023/08/28 19:16:45 Command did not exit successfully docker build -t mythicalmysfits/service:latest . exit status 1
45 | [Container] 2023/08/28 19:16:45 Phase complete: BUILD State: FAILED
46 | [Container] 2023/08/28 19:16:45 Phase context status code: COMMAND_EXECUTION_ERROR Message: Error while executing command: docker build -t mythicalmysfits/service:latest .. Reason: exit status 1
47 | [Container] 2023/08/28 19:16:45 Entering phase POST_BUILD
48 | [Container] 2023/08/28 19:16:45 Running command echo Build completed on date
49 | Build completed on Mon Aug 28 19:16:45 UTC 2023

What am I doing wrong?