Jbalkind commented on issue #3428: Broken resolvers config in apigateway container URL: https://github.com/apache/incubator-openwhisk/issues/3428#issuecomment-417413707 I have been seeing this same problem, running OpenWhisk in an Ubuntu 18.04 VM in Qemu. I figured out what's happening and it's not upstream alpine's fault. The `/etc/api-gateway/conf.d/includes/resolvers.conf` file is creaetd by the incubator-openwhisk-apigateway `init.sh` script, in particular the following line ([see inline](https://github.com/apache/incubator-openwhisk-apigateway/blob/master/init.sh#L58)): ``` echo resolver $(awk 'BEGIN{ORS=" "} /nameserver/{print $2}' /etc/resolv.conf | sed "s/ $/;/g") > /etc/api-gateway/conf.d/includes/resolvers.conf ``` At the face of it, this seems correct. The problem is that there are comments at the start of the file. They look like this on my system: ``` # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN # 127.0.0.53 is the systemd-resolved stub resolver. # run "systemd-resolve --status" to see details about the actual nameservers. ``` The last line of the comment matches the awk command as it contains `nameserver`. Then, as the awk command says, it prints the 2nd token on the line, which is the word `run`. This can be simply solved by changing the awk command to: ``` awk 'BEGIN{ORS=" "} /^nameserver/{print $2}' /etc/resolv.conf ``` or, for something more robust (in case there's space before `nameserver`), you could go for: ``` awk 'BEGIN{ORS=" "} /^[[:space:]]*nameserver/{print $2}' /etc/resolv.conf ```
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