Error installing fluent-plugin-webhdfs

[allenhaozi]

root@e100069201209:/fluentd# fluent-gem install fluent-plugin-webhdfs -v 1.2.3
Building native extensions. This could take a while...
ERROR: Error installing fluent-plugin-webhdfs:
ERROR: Failed to build gem native extension.

current directory: /fluentd/vendor/bundle/ruby/2.3.0/gems/strptime-0.2.3/ext/strptime

/usr/bin/ruby2.3 -r ./siteconf20180426-316-14zhkeg.rb extconf.rb
mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h

extconf failed, exit code 1

Gem files will remain installed in /fluentd/vendor/bundle/ruby/2.3.0/gems/strptime-0.2.3 for inspection.
Results logged to /fluentd/vendor/bundle/ruby/2.3.0/extensions/x86_64-linux/2.3.0/strptime-0.2.3/gem_make.out

[repeatedly]

See: https://docs.fluentd.org/v1.0/articles/plugin-management#gem-and-native-extension

[allenhaozi]

how to know which development packages to build ?

[allenhaozi]

fix this problem by
rebuild docker
append "fluent-plugin-webhdfs" to this file fluentd-kubernetes-daemonset/docker-image/v0.12/debian-elasticsearch/Gemfile