diff --git a/ci/build.sh b/ci/build.sh index 8f6e37e585..c0983ad6af 100755 --- a/ci/build.sh +++ b/ci/build.sh @@ -3,6 +3,7 @@ VERSION="${TRAVIS_TAG:-0.0.0}" VERSION="${VERSION#v}" : "${DOCKER_TAG:=sumologic/kubernetes-fluentd}" +: "${TOOLS_TAG:=sumologic/kubernetes-tools}" : "${DOCKER_USERNAME:=sumodocker}" DOCKER_TAGS="https://registry.hub.docker.com/v1/repositories/sumologic/kubernetes-fluentd/tags" @@ -70,6 +71,9 @@ cd ../.. echo "Test docker image locally..." ruby deploy/test/test_docker.rb +echo "Building tools image with $TOOLS_TAG:local in $(pwd)..." +docker build -t $TOOLS_TAG:local tools --no-cache + # Check for changes that require re-generating overrides yaml files if [ -n "$GITHUB_TOKEN" ] && [ "$TRAVIS_EVENT_TYPE" == "pull_request" ]; then echo "Generating deployment yaml from helm chart..." @@ -178,15 +182,30 @@ function push_helm_chart() { set +x } + +function push_tools_image() { + local version="$1" + + set -x + echo "Tagging tools image with $TOOLS_TAG:$version" + docker tag $TOOLS_TAG:local "$TOOLS_TAG:$version" + decho "Pushing docker image $TOOLS_TAG:$version" + echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin + docker push $TOOLS_TAG:$version + set +x +} + if [ -n "$DOCKER_PASSWORD" ] && [ -n "$TRAVIS_TAG" ]; then push_docker_image "$VERSION" push_helm_chart "$VERSION" + push_tools_image "$VERSION" elif [ -n "$DOCKER_PASSWORD" ] && [[ "$TRAVIS_BRANCH" == "master" || "$TRAVIS_BRANCH" =~ ^release-v[0-9]+\.[0-9]+$ ]] && [ "$TRAVIS_EVENT_TYPE" == "push" ]; then dev_build_tag=$(git describe --tags --always) dev_build_tag=${dev_build_tag#v} push_docker_image "$dev_build_tag" push_helm_chart "$dev_build_tag" + push_tools_image "$dev_build_tag" else echo "Skip Docker pushing" diff --git a/tools/Dockerfile b/tools/Dockerfile new file mode 100644 index 0000000000..56171d215c --- /dev/null +++ b/tools/Dockerfile @@ -0,0 +1,30 @@ +FROM golang:1.14.1 as builder +RUN mkdir /build +ADD . /build/ +WORKDIR /build +RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -ldflags '-extldflags "-static"' -o k8s-api-test cmd/k8s-api-test/main.go + +FROM alpine:3.9 + +RUN set -ex \ + && echo "http://dl-cdn.alpinelinux.org/alpine/edge/main" >> /etc/apk/repositories \ + && echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories \ + && apk update \ + && apk upgrade \ + && apk add --no-cache \ + bash \ + busybox-extras \ + curl \ + libc6-compat \ + openssl \ + net-tools \ + vim + +ADD motd /etc/motd +ADD profile /etc/profile + +ADD check /usr/bin/check +ADD tools-usage /usr/bin/tools-usage +COPY --from=builder /build/k8s-api-test /usr/bin/ + +CMD ["/usr/bin/tools-usage"] \ No newline at end of file diff --git a/tools/README.md b/tools/README.md new file mode 100644 index 0000000000..dcbc9ec169 --- /dev/null +++ b/tools/README.md @@ -0,0 +1,36 @@ +#Tools + +This repository contains a simple tool that allows to check if environment is compatible with +Kubernetes collection. + + +# Running + +## K8S Check + +`$ kubectl run tools --generator=run-pod/v1 -it --rm --restart=Never --image sumologic/kubernetes-tools -- check` + +Should provide an output such as: + +``` +/var/run/secrets/kubernetes.io/serviceaccount/token exists, size=842 +/var/run/secrets/kubernetes.io/serviceaccount/ca.crt exists, size=1025 +/var/run/secrets/kubernetes.io/serviceaccount/namespace exists, size=7 +/var/run/secrets/kubernetes.io/serviceaccount/namespace contents: default +KUBERNETES_SERVICE_HOST is set +KUBERNETES_SERVICE_PORT is set +POD_NAMESPACE is not set +POD_NAMESPACE env variable: +Kubernetes cluster at 10.96.0.1:443 +Running K8S API test +2020/04/21 18:51:45 Kubernetes version: v1.15.5 +2020/04/21 18:51:45 Received data for 15 pods in the cluster +pod "diag" deleted +``` + +## Interactive mode + +The pod can be also run in interactive mode: + +`$ kubectl run tools --generator=run-pod/v1 -it --rm --restart=Never --image sumologic/kubernetes-tools -- /bin/bash -l` + diff --git a/tools/check b/tools/check new file mode 100755 index 0000000000..b35f22af96 --- /dev/null +++ b/tools/check @@ -0,0 +1,37 @@ +#!/usr/bin/env bash + +function check_file() { + if [[ -f $1 ]]; then + size=$(stat -L -c %s $1) + echo "$1 exists, size=${size}" + + if [ "$2" == "true" ]; then + contents="$(cat $1)" + echo "$1 contents: $contents" + fi + else + echo "$1 does not exist" + fi +} + +function check_env() { + if [[ -v $1 ]]; then + echo "$1 is set" + else + echo "$1 is not set" + fi +} + +check_file /var/run/secrets/kubernetes.io/serviceaccount/token +check_file /var/run/secrets/kubernetes.io/serviceaccount/ca.crt +check_file /var/run/secrets/kubernetes.io/serviceaccount/namespace true + +check_env KUBERNETES_SERVICE_HOST +check_env KUBERNETES_SERVICE_PORT +check_env POD_NAMESPACE +echo "POD_NAMESPACE env variable: ${POD_NAMESPACE}" +echo "Kubernetes cluster at $KUBERNETES_SERVICE_HOST:$KUBERNETES_SERVICE_PORT" + +echo "Running K8S API test" + +/usr/bin/k8s-api-test \ No newline at end of file diff --git a/tools/cmd/k8s-api-test/main.go b/tools/cmd/k8s-api-test/main.go new file mode 100644 index 0000000000..b02249dedd --- /dev/null +++ b/tools/cmd/k8s-api-test/main.go @@ -0,0 +1,44 @@ +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package main + +import ( + "log" + + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes" + "k8s.io/client-go/rest" +) + +func main() { + handleErr := func(message string, err error) { + if err != nil { + log.Fatalf("%s: %v\n", message, err) + } + } + + config, err := rest.InClusterConfig() + handleErr("Failed when creating in-cluster K8S config", err) + + clientset, err := kubernetes.NewForConfig(config) + handleErr("Failed when connecting to K8S cluster", err) + + version, err := clientset.Discovery().ServerVersion() + handleErr("Failed when pulling version info", err) + log.Printf("Kubernetes version: %s", version.GitVersion) + + pods, err := clientset.CoreV1().Pods("").List(metav1.ListOptions{Limit: 20}) + handleErr("Failed when fetching list of pods", err) + + log.Printf("Received data for %d pods in the cluster\n", len(pods.Items)) +} diff --git a/tools/go.mod b/tools/go.mod new file mode 100644 index 0000000000..d7e9cd7d75 --- /dev/null +++ b/tools/go.mod @@ -0,0 +1,8 @@ +module github.com/SumoLogic/sumologic-kubernetes-collection/tools + +go 1.14 + +require ( + k8s.io/apimachinery v0.0.0-20190612205821-1799e75a0719 + k8s.io/client-go v12.0.0+incompatible +) diff --git 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h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o= diff --git a/tools/motd b/tools/motd new file mode 100644 index 0000000000..e4d805b757 --- /dev/null +++ b/tools/motd @@ -0,0 +1 @@ +Welcome to Collection Tools image \ No newline at end of file diff --git a/tools/profile b/tools/profile new file mode 100644 index 0000000000..234de09fe1 --- /dev/null +++ b/tools/profile @@ -0,0 +1 @@ +export PS1="\e[0;32m\]\u@\h \w >\e[0m\] " \ No newline at end of file diff --git a/tools/tools-usage b/tools/tools-usage new file mode 100755 index 0000000000..18486be0a8 --- /dev/null +++ b/tools/tools-usage @@ -0,0 +1,15 @@ +#!/usr/bin/env bash + +read -d '' usage << EOF +This image provides a set of tools for Kubernetes Collection. You can use following commands: + + * K8S Check for verifying the environment: + + kubectl run tools --generator=run-pod/v1 -it --rm --restart=Never --image sumologic/kubernetes-tools -- check + + * Interactive mode: + + kubectl run tools --generator=run-pod/v1 -it --rm --restart=Never --image sumologic/kubernetes-tools -- /bin/bash -l +EOF + +echo "$usage" \ No newline at end of file