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diff --git a/troubleshooting.md b/troubleshooting.md new file mode 100644 index 000000000..25e750e40 --- /dev/null +++ b/troubleshooting.md @@ -0,0 +1,56 @@ + + +# Troubleshooting + +## A list of common issues and solutions for Podman + +--- +### 1) No such image or Bare keys cannot contain ':' + +When doing a `podman pull` or `podman build` command and a "common" image can not be pulled, +it is likely that the `/etc/containers/registries.conf` file is either not installed or possibly +misconfigured. + +#### Symptom +``` +sudo podman build -f Dockerfile +STEP 1: FROM alpine +error building: error creating build container: no such image "alpine" in registry: image not known +``` +or +``` +$ sudo podman pull fedora +error pulling image "fedora": unable to pull fedora: error getting default registries to try: Near line 9 (last key parsed ''): Bare keys cannot contain ':'. +``` + +#### Solution + + * Verify that the `/etc/containers/registries.conf` file exists. If not, verify that the skopeo-containers package is installed. + * Verify that the entries in the `[registries.search]` section of the /etc/containers/registries.conf file are valid and reachable. + * i.e. `registries = ['registry.fedoraproject.org', 'quay.io', 'registry.access.redhat.com']` + +--- +### 2) http: server gave HTTP response to HTTPS client + +When doing a Podman command such as `build`, `commit`, `pull`, or `push` to a registry, +tls verification is turned on by default. If authentication is not used with +those commands, this error can occur. + +#### Symptom +``` +podman push alpine docker://localhost:5000/myalpine:latest +Getting image source signatures +Get https://localhost:5000/v2/: http: server gave HTTP response to HTTPS client +``` + +#### Solution + +By default tls verification is turned on when communicating to registries from +Podman. If the registry does not require authentication the Podman commands +such as `build`, `commit`, `pull` and `push` will fail unless tls verification is turned +off using the `--tls-verify` option. **NOTE:** It is not at all recommended to +communicate with a registry and not use tls verification. + + * Turn off tls verification by passing false to the tls-verification option. + * I.e. `podman push --tls-verify=false alpine docker://localhost:5000/myalpine:latest` +--- |