DTIN-5940: Switch to the Alpine base image for AWS ECS secretOptions support

Author: jmakar-s1

CHANGELOG.md

@@ -1,3 +1,8 @@
+## 0.9.1 - June 12th, 2025
+
+- Update fluentd Docker image to `v1.18.0-1.3`
+  - Done to support AWS ECS secretOptions
+
 ## 0.9.0 - June 2nd, 2025
 
 - Bump rexml from 3.2.5 to 3.3.3 (via Dependabot)

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    fluent-plugin-scalyr (0.9.0)
+    fluent-plugin-scalyr (0.9.1)
       ffi (= 1.15.5)
       fluentd (>= 0.14.0, < 2)
       rbzip2 (= 0.3.0)

VERSION

@@ -1 +1 @@
-0.9.0
+0.9.1

docker/Dockerfile

@@ -1,20 +1,13 @@
-FROM fluent/fluentd:v1.18.0-debian AS build
+FROM fluent/fluentd:v1.18.0-1.3
 
 USER root
 
-RUN apt-get update \
-    && apt-get install -y --no-install-recommends build-essential ruby-dev zlib1g-dev
-
 COPY ./pkg/fluent-plugin-scalyr-*.gem /
 RUN mv /fluent-plugin-scalyr-*.gem /fluent-plugin-scalyr.gem
-RUN gem install --install-dir /bundle fluent-plugin-scalyr.gem \
-    && (cd /bundle; tar czf /bundle.tar.gz .)
-
-FROM fluent/fluentd:v1.18.0-debian
-
-USER root
-
-COPY --from=build /bundle.tar.gz /
-RUN tar xzf /bundle.tar.gz -C /usr/local/bundle && rm /bundle.tar.gz
+RUN apk add --no-cache --update --virtual .build-deps build-base ruby-dev \
+      && gem install fluent-plugin-scalyr.gem \
+      && gem sources --clear-all \
+      && apk del .build-deps \
+      && rm -rf /tmp/* /var/tmp/* /usr/lib/ruby/gems/*/cache/*.gem
 
 USER fluent