Import init

Makefile

@@ -0,0 +1,14 @@
+.PHONY: build-all push-all
+images=k8s-training-tools k8s-training-stress
+
+build-all:
+	for image in $(images) ; do \
+		cd $$image && make build && cd .. ; \
+	done ; \
+	cd k8s-training-deploy && make build-v1 && make build-v2
+
+push-all:
+	for image in $(images) ; do \
+		cd $$image && make push  && cd .. ; \
+	done ; \
+	cd k8s-training-deploy && make push-v1 && make push-v2

README.md

@@ -0,0 +1,5 @@
+In trainings, we used some of the following images:
+
+- [`zenika/k8s-training-deploy`](k8s-training-deploy/): image of an HTTP server that returns its version, used for labs on Deployments
+- [`zenika/k8s-training-tools`](k8s-training-tools/): Debian-based image that embeds the necessary tools for labs such as the `curl`, `dnsutils`, `httping`, `procps`, `kubectl`, `jwt-cli`
+- [`zenika/k8s-training-stress`](k8s-training-stress/): image of a binary to consume memory or CPU.

k8s-training-deploy/Dockerfile

@@ -0,0 +1,9 @@
+FROM gcr.io/distroless/python3
+
+ARG VERSION=v0
+
+ENV VERSION=${VERSION}
+
+ADD app.py /app.py
+
+ENTRYPOINT ["python3", "-u", "/app.py"]

k8s-training-deploy/Makefile

@@ -0,0 +1,20 @@
+.PHONY: build-v1 push-v1 build-v2 push-v2 build push
+image_name=zenika/k8s-training-deploy
+
+build-v1: version=v1
+build-v1: build
+
+push-v1: version=v1
+push-v1: build push
+
+build-v2: version=v2
+build-v2: build
+
+push-v2: version=v2
+push-v2: build push
+
+build:
+	docker image build --build-arg VERSION=$(version) -t $(image_name):$(version) .
+
+push:
+	docker image push $(image_name):$(version)

k8s-training-deploy/app.py

@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+# coding: utf-8
+
+import os
+import signal
+import socket
+import sys
+from http.server import BaseHTTPRequestHandler, HTTPServer
+
+
+class RequestHandler(BaseHTTPRequestHandler):
+
+    def do_GET(self):
+        self.send_response(200)
+        self.send_header('Content-type', 'text/plain')
+        self.end_headers()
+        version = os.environ.get('VERSION', 'v0')
+        hostname = socket.gethostname()
+        if version == "v1":
+          version = "v1 *🔵 🔵 *"
+        elif version == "v2":
+          version = "v2       #🟩 🟩 #"
+        message = 'Hello from {} and version {}\n'.format(hostname, version)
+        self.wfile.write(bytes(message, 'utf8'))
+
+
+def run():
+    host = '0.0.0.0'
+    port = 8080
+    server_address = (host, port)
+    httpd = HTTPServer(server_address, RequestHandler)
+    print('Server is listening on http://{}:{}'.format(host, port))
+    try:
+        httpd.serve_forever()
+    except KeyboardInterrupt:
+        pass
+    finally:
+        httpd.server_close()
+        print('Stopped')
+
+
+signal.signal(signal.SIGTERM, lambda s, f: sys.exit(0))
+run()

k8s-training-stress/Dockerfile

@@ -0,0 +1,10 @@
+FROM debian:11-slim
+
+RUN set -eux; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+            stress \
+    ; \
+    rm -rf /var/lib/apt/lists/*
+
+ENTRYPOINT ["stress"]

k8s-training-stress/Makefile

@@ -0,0 +1,8 @@
+.PHONY: build push
+image_name=zenika/k8s-training-stress:v3
+
+build:
+	docker image build -t $(image_name) .
+
+push: build
+	docker image push $(image_name)

k8s-training-tools/Dockerfile

@@ -0,0 +1,24 @@
+FROM debian:12-slim
+
+RUN set -eux; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+            curl \
+            dnsutils \
+            iputils-ping \
+            iproute2 \
+            httping \
+            procps \
+            ca-certificates \
+            vim \
+    ; \
+    rm -rf /var/lib/apt/lists/*
+
+ENV JWT_VERSION=6.0.0
+RUN curl -fSsLO https://github.com/mike-engel/jwt-cli/releases/download/${JWT_VERSION}/jwt-linux.tar.gz && \
+    tar zxf jwt-linux.tar.gz && \
+    mv jwt /usr/bin
+
+ENV KUBECTL_VERSION=1.29.0
+RUN curl -fsSLo /usr/local/bin/kubectl https://storage.googleapis.com/kubernetes-release/release/v${KUBECTL_VERSION}/bin/linux/amd64/kubectl \
+  && chmod +x /usr/local/bin/kubectl

k8s-training-tools/Makefile

@@ -0,0 +1,8 @@
+.PHONY: build push
+image_name=zenika/k8s-training-tools:v4
+
+build:
+	docker image build -t $(image_name) .
+
+push: build
+	docker image push $(image_name)