fix: add kubectl and openssl to testing-tools (#1367)

* fix: add kubectl and openssl to testing-tools

* chore: changelog

* docs: add comment about kubectl version

Author: dervoeti

CHANGELOG.md

@@ -17,6 +17,7 @@ All notable changes to this project will be documented in this file.
 - airflow: Bump celery version to 5.5.3 for Airflow 3.x ([#1343]).
 - testing-tools: refactoring: Split image into multiple images, remove unnecessary components and switch to UBI as base image ([#1354]).
 - hive: fixed 4.0.1 shaded hive-metastore-opa-authorizer jar by relocating dependencies ([#1356]).
+- testing-tools: fix: add kubectl and openssl ([#1367]).
 
 ### Removed
 
@@ -30,6 +31,7 @@ All notable changes to this project will be documented in this file.
 [#1356]: https://github.com/stackabletech/docker-images/pull/1356
 [#1357]: https://github.com/stackabletech/docker-images/pull/1357
 [#1358]: https://github.com/stackabletech/docker-images/pull/1358
+[#1367]: https://github.com/stackabletech/docker-images/pull/1367
 
 ## [25.11.0] - 2025-11-07
 

testing-tools/Dockerfile

@@ -8,7 +8,9 @@ FROM registry.access.redhat.com/ubi10/ubi-minimal@sha256:28ec2f4662bdc4b0d4893ef
 
 ARG PRODUCT_VERSION
 ARG PYTHON_VERSION
+ARG KUBECTL_VERSION
 ARG RELEASE_VERSION
+ARG TARGETARCH
 ARG STACKABLE_USER_UID
 ARG STACKABLE_USER_GID
 ARG STACKABLE_USER_NAME
@@ -49,6 +51,7 @@ microdnf install \
   gcc \
   make \
   pkg-config \
+  openssl \
   openssl-devel \
   libxml2-devel \
   libxslt-devel \
@@ -70,6 +73,12 @@ python3.12 -m pip install --no-cache-dir -r /stackable/requirements.txt
 
 ln -s /usr/bin/python3.12 /usr/bin/python
 
+# Install kubectl
+# Get latest stable version from curl -L -s https://dl.k8s.io/release/stable.txt
+curl -LO "https://dl.k8s.io/release/v${KUBECTL_VERSION}/bin/linux/${TARGETARCH}/kubectl"
+install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl
+rm kubectl
+
 # Added only temporarily to create the user and group, removed again below
 microdnf install shadow-utils
 

testing-tools/boil-config.toml

@@ -1,2 +1,3 @@
 [versions."0.3.0".build-arguments]
+kubectl-version = "1.35.0"
 python-version = "3.12"