I'm using the Go package pingdom-go to query Pingdom. The application is containerized as this:
FROM alpine:3.8
USER nobody
ADD build/_output/bin/app /usr/local/bin/app
However I get the following error:
Get https://api.pingdom.com/api/2.1/checks/0: x509: certificate signed by unknown authority
I've already tried what suggested here x509 certificate signed by unknown authority but without luck. Any ideas?
So the alpine containers are very minimal, including not having certs. You can either install the certs like @TimCooper suggested:
apk add --no-cache ca-certificates
You can also checkout GoogleContainerTools/distroless. It is minimal but has a few things like certs that make development life a little easier.
add the following cmd to your Dockerfile can fix it.
FROM alpine:3.8
RUN apk update && apk add ca-certificates && rm -rf /var/cache/apk/*