create minimal nsswitch.conf file in Docker image #1
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As a result, /etc/hosts will be prioritized over DNS queries This resolves the conflict between: * fluxd using netgo for static compilation. netgo reads nsswitch.conf to mimic glibc, defaulting to prioritize DNS queries over /etc/hosts if nsswitch.conf is missing: golang/go#22846 * Alpine not including a nsswitch.conf file. Since Alpine doesn't use glibc (it uses musl), maintainers argue that the need of nsswitch.conf is a Go bug: gliderlabs/docker-alpine#367 (comment)
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Add parameter and default value in place of hard-coded /dockercfg/config.json
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As a result, /etc/hosts will be prioritized over DNS queries
This resolves the conflict between:
defaulting to prioritize DNS queries over /etc/hosts if nsswitch.conf is missing:
net: Go DNS resolver does not read /etc/hosts golang/go#22846
(it uses musl), maintainers argue that the need of nsswitch.conf is a Go bug:
Alpine linux doesn't have nsswitch configuration file gliderlabs/docker-alpine#367 (comment)