Migrate build commands to debian

Author: rwunderer

Dockerfile

@@ -3,13 +3,20 @@ FROM fluent/fluentd:${FLUENTD_VERSION}
 
 USER root
 
-RUN apk add --no-cache --update --virtual .build-deps \
-        sudo build-base ruby-dev && \
+#RUN apk add --no-cache --update --virtual .build-deps \
+#        sudo build-base ruby-dev && \
+#    fluent-gem install fluent-plugin-opensearch && \
+#    fluent-gem install fluent-plugin-wodby --version=">=0.1.8" && \
+#    gem sources --clear-all && \
+#    apk del .build-deps && \
+#    rm -rf /home/fluent/.gem/ruby/2.5.0/cache/*.gem
+RUN apt update && \
+    apt install -y ruby-dev && \
     fluent-gem install fluent-plugin-opensearch && \
-    fluent-gem install fluent-plugin-wodby --version=">=0.1.8" && \
-    gem sources --clear-all && \
-    apk del .build-deps && \
-    rm -rf /home/fluent/.gem/ruby/2.5.0/cache/*.gem
+    fluent-gem install fluent-plugin-wodby && \
+    apt purge -y ruby-dev && \
+    apt autoremove --purge -y && \
+    rm -rf /var/lib/apt/*
 
 ENV FLUENT_OPENSEARCH_HOST=opensearch
 ENV FLUENT_OPENSEARCH_PORT=9200