installing gosu on a centos docker box

install-gosu-centos.md

# Install gosu.  https://github.com/tianon/gosu
ENV GOSU_VERSION=1.11
RUN gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
    && curl -o /usr/local/bin/gosu -SL "https://github.com/tianon/gosu/releases/download/${GOSU_VERSION}/gosu-amd64" \
    && curl -o /usr/local/bin/gosu.asc -SL "https://github.com/tianon/gosu/releases/download/${GOSU_VERSION}/gosu-amd64.asc" \
    && gpg --verify /usr/local/bin/gosu.asc \
    && rm /usr/local/bin/gosu.asc \
    && rm -r /root/.gnupg/ \
    && chmod +x /usr/local/bin/gosu \
    # Verify that the binary works
    && gosu nobody true

Thx

+1

+1

Thanks!

+1

In some cases the gpg fail, use alternative here: tianon/gosu#17

Thanks!

@tedgin - This command doesn't works for cenos. Its giving me below error

$ RUN gpg --keyserver pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
>     && curl -o /usr/local/bin/gosu -SL "https://github.com/tianon/gosu/releases/download/1.2/gosu-amd64" \
>     && curl -o /usr/local/bin/gosu.asc -SL "https://github.com/tianon/gosu/releases/download/1.2/gosu-amd64.asc" \
>     && gpg --verify /usr/local/bin/gosu.asc \
>     && rm /usr/local/bin/gosu.asc \
>     && rm -r /root/.gnupg/ \
>     && chmod +x /usr/local/bin/gosu
-bash: RUN: command not found

@tedgin - This command doesn't works for cenos. Its giving me below error

-bash: RUN: command not found

@Javaprogramer, Docker commands are not valid Linux command-line commands. In this case, remove the RUN command before pasting it into a terminal.

---

Also, thank you @rafaeltuelho! I have modified your original snippet like so.

1. Changed keyserver to match https://github.com/tianon/gosu README.
   • I strongly encourage others to check the README and verify the keyserver/GPG key themselves prior to just copy/pasting a github snippet.
2. Use env var for version. 1.11 is newest as of 10/24/2018.
3. Added check at the end to verify binary works (via https://github.com/tianon/gosu/blob/master/INSTALL.md)

# Install gosu.  https://github.com/tianon/gosu
ENV GOSU_VERSION=1.11
RUN gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
    && curl -o /usr/local/bin/gosu -SL "https://github.com/tianon/gosu/releases/download/${GOSU_VERSION}/gosu-amd64" \
    && curl -o /usr/local/bin/gosu.asc -SL "https://github.com/tianon/gosu/releases/download/${GOSU_VERSION}/gosu-amd64.asc" \
    && gpg --verify /usr/local/bin/gosu.asc \
    && rm /usr/local/bin/gosu.asc \
    && rm -r /root/.gnupg/ \
    && chmod +x /usr/local/bin/gosu \
    # Verify that the binary works
    && gosu nobody true

Thanks @adveres

thanks！！！

Thanks!

2021.07.02

Succeeded.

ENV GOSU_VERSION=1.11
RUN gpg --keyserver hkps://keys.openpgp.org --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
    && curl -o /usr/local/bin/gosu -SL "https://github.com/tianon/gosu/releases/download/${GOSU_VERSION}/gosu-amd64" \
    && curl -o /usr/local/bin/gosu.asc -SL "https://github.com/tianon/gosu/releases/download/${GOSU_VERSION}/gosu-amd64.asc" \
    && gpg --verify /usr/local/bin/gosu.asc \
    && rm /usr/local/bin/gosu.asc \
    && rm -r /root/.gnupg/ \
    && chmod +x /usr/local/bin/gosu \
    # Verify that the binary works
    && gosu nobody true

Changed:
--keyserver hkps://keys.openpgp.org

Ref. https://github.com/tianon/gosu/blob/master/INSTALL.md

Cudo 👍