docker build returned a non-zero code: 2

[stevenlee87]

hello!
when I execute docker build , returned a non-zero code: 2

that's my environment:
OS : CentOS Linux release 7.2.1511 (Core)
docker Version: 1.13
dockerfile and docker-entrypoint.sh down from https://github.com/hashicorp/docker-consul/blob/9bd2aa7ecf2414b8712e055f2374699148e8941c/0.X/Dockerfile

that's error:

• gpg --keyserver pgp.mit.edu --recv-keys 91A6E7F85D05C65630BEF18951852D87348FFC4C
  gpg: directory '/root/.gnupg' created
  gpg: keybox '/root/.gnupg/pubring.kbx' created
  gpg: keyserver receive failed: No data
  The command '/bin/sh -c set -eux && apk add --no-cache ca-certificates curl dumb-init gnupg libcap openssl su-exec iputils jq && gpg --keyserver pgp.mit.edu --recv-keys 91A6E7F85D05C65630BEF18951852D87348FFC4C && mkdir -p /tmp/build && cd /tmp/build && apkArch="$(apk --print-arch)" && case "${apkArch}" in aarch64) consulArch='arm64' ;; armhf) consulArch='arm' ;; x86) consulArch='386' ;; x86_64) consulArch='amd64' ;; *) echo >&2 "error: unsupported architecture: ${apkArch} (see ${HASHICORP_RELEASES}/consul/${CONSUL_VERSION}/)" && exit 1 ;; esac && wget ${HASHICORP_RELEASES}/consul/${CONSUL_VERSION}/consul_${CONSUL_VERSION}linux${consulArch}.zip && wget ${HASHICORP_RELEASES}/consul/${CONSUL_VERSION}/consul_${CONSUL_VERSION}SHA256SUMS && wget ${HASHICORP_RELEASES}/consul/${CONSUL_VERSION}/consul${CONSUL_VERSION}SHA256SUMS.sig && gpg --batch --verify consul${CONSUL_VERSION}SHA256SUMS.sig consul${CONSUL_VERSION}SHA256SUMS && grep consul${CONSUL_VERSION}linux${consulArch}.zip consul_${CONSUL_VERSION}SHA256SUMS | sha256sum -c && unzip -d /bin consul${CONSUL_VERSION}linux${consulArch}.zip && cd /tmp && rm -rf /tmp/build && apk del gnupg openssl && rm -rf /root/.gnupg && consul version' returned a non-zero code: 2

[mkeeler]

Unfortunately this a transient error outside of our control (except if we just disabled gpg signature verification which we don't want to do). The error is communicating with pgp.mit.edu's gpg key server. Occasionally it fails to respond with the appropriate data. If you try the build again it should work.

[stevenlee87]

I have removed the GPG function. thank you!

[jwalzer]

Have a look at #137 - Duplicate.... and BTW, there is a PR to fix that