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Add /etc/nsswitch.conf for /etc/hosts name resolution #1251

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May 20, 2020
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Add /etc/nsswitch.conf for /etc/hosts name resolution #1251

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1 change: 1 addition & 0 deletions deploy/Dockerfile
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Expand Up @@ -39,6 +39,7 @@ COPY --from=0 /go/src/github.com/awslabs/amazon-ecr-credential-helper/bin/linux-
COPY --from=0 /usr/local/bin/docker-credential-acr-linux /kaniko/docker-credential-acr
COPY files/ca-certificates.crt /kaniko/ssl/certs/
COPY --from=0 /kaniko/.docker /kaniko/.docker
COPY files/nsswitch.conf /etc/nsswitch.conf
ENV HOME /root
ENV USER /root
ENV PATH /usr/local/bin:/kaniko
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1 change: 1 addition & 0 deletions deploy/Dockerfile_debug
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Expand Up @@ -50,6 +50,7 @@ COPY --from=1 /distroless/bazel-bin/experimental/busybox/busybox/ /busybox/
VOLUME /busybox
COPY files/ca-certificates.crt /kaniko/ssl/certs/
COPY --from=0 /kaniko/.docker /kaniko/.docker
COPY files/nsswitch.conf /etc/nsswitch.conf
ENV HOME /root
ENV USER /root
ENV PATH /usr/local/bin:/kaniko:/busybox
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1 change: 1 addition & 0 deletions deploy/Dockerfile_warmer
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Expand Up @@ -39,6 +39,7 @@ COPY --from=0 /go/src/github.com/awslabs/amazon-ecr-credential-helper/bin/linux-
COPY --from=0 /usr/local/bin/docker-credential-acr-linux /kaniko/docker-credential-acr
COPY files/ca-certificates.crt /kaniko/ssl/certs/
COPY --from=0 /kaniko/.docker /kaniko/.docker
COPY files/nsswitch.conf /etc/nsswitch.conf
ENV HOME /root
ENV USER /root
ENV PATH /usr/local/bin:/kaniko
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25 changes: 25 additions & 0 deletions files/nsswitch.conf
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@@ -0,0 +1,25 @@
# /etc/nsswitch.conf
#
# As described on the web page https://man7.org/linux/man-pages/man3/gethostbyname.3.html,
# without the nsswitch.conf file, the gethostbyname() and gethostbyaddr() domain queries
# will fail to a local name server, thus the /etc/hosts will take no effect.
#
# For example, when hostaliases are specified for a kubernetes pod, without proper settings
# defined in this file, the hostaliases settings will not take effect.
#
# Following contents of this file is from the ubuntu:16.04 docker image.

passwd: compat
group: compat
shadow: compat
gshadow: files

hosts: files dns
networks: files

protocols: db files
services: db files
ethers: db files
rpc: db files

netgroup: nis