├── 01-kind.sh ├── 02-contour.sh ├── 02-kourier.sh ├── 02-serving.sh ├── 03-serving-samples.sh ├── 04-eventing.sh ├── 05-eventing-samples.sh ├── LICENSE ├── README.md ├── demo.sh ├── install.sh ├── knative.excalidraw ├── knative.png └── knative.svg /01-kind.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | set -eo pipefail 4 | 5 | kindVersion=$(kind version); 6 | K8S_VERSION=${k8sVersion:-v1.23.4@sha256:0e34f0d0fd448aa2f2819cfd74e99fe5793a6e4938b328f657c8e3f81ee0dfb9} 7 | KIND_BASE=${KIND_BASE:-kindest/node} 8 | CLUSTER_NAME=${KIND_CLUSTER_NAME:-knative} 9 | KIND_VERSION=${KIND_VERSION:-v0.12} 10 | 11 | echo "KinD version is ${kindVersion}" 12 | if [[ ! $kindVersion =~ "${KIND_VERSION}." ]]; then 13 | echo "WARNING: Please make sure you are using KinD version ${KIND_VERSION}.x, download from https://github.com/kubernetes-sigs/kind/releases" 14 | echo "For example if using brew, run: brew upgrade kind" 15 | read -p "Do you want to continue on your own risk? Y/n: " REPLYKIND /dev/null && break 12 | n=$[$n+1] 13 | sleep 5 14 | done 15 | kubectl wait --for=condition=Established --all crd > /dev/null 16 | kubectl wait pod --timeout=-1s --for=condition=Ready -l '!job-name' -n contour-internal > /dev/null 17 | kubectl wait pod --timeout=-1s --for=condition=Ready -l '!job-name' -n contour-external > /dev/null 18 | 19 | ## INSTALL NET CONTOUR 20 | n=0 21 | until [ $n -ge 2 ]; do 22 | kubectl apply -f https://github.com/knative-sandbox/net-contour/releases/download/knative-v${KNATIVE_NET_CONTOUR_VERSION}/net-contour.yaml > /dev/null && break 23 | n=$[$n+1] 24 | sleep 5 25 | done 26 | # deployment for net-contour gets deployed to namespace knative-serving 27 | kubectl wait pod --timeout=-1s --for=condition=Ready -l '!job-name' -n knative-serving > /dev/null 28 | 29 | # Configure Knative to use this ingress 30 | kubectl patch configmap/config-network \ 31 | --namespace knative-serving \ 32 | --type merge \ 33 | --patch '{"data":{"ingress.class":"contour.ingress.networking.knative.dev"}}' 34 | 35 | 36 | cat < /dev/null && break 12 | echo "Kourier failed to install on first try" 13 | n=$[$n+1] 14 | sleep 10 15 | done 16 | kubectl wait pod --timeout=-1s --for=condition=Ready -l '!job-name' -n kourier-system > /dev/null 17 | kubectl wait pod --timeout=-1s --for=condition=Ready -l '!job-name' -n knative-serving > /dev/null 18 | 19 | # Configure Knative to use this ingress 20 | kubectl patch configmap/config-network \ 21 | --namespace knative-serving \ 22 | --type merge \ 23 | --patch '{"data":{"ingress.class":"kourier.ingress.networking.knative.dev"}}' 24 | 25 | 26 | cat < /dev/null && break 12 | echo "Serving CRDs failed to install on first try" 13 | n=$[$n+1] 14 | sleep 5 15 | done 16 | set -e 17 | kubectl wait --for=condition=Established --all crd > /dev/null 18 | 19 | n=0 20 | set +e 21 | until [ $n -ge 2 ]; do 22 | kubectl apply -f https://github.com/knative/serving/releases/download/knative-v${KNATIVE_VERSION}/serving-core.yaml > /dev/null && break 23 | echo "Serving Core failed to install on first try" 24 | n=$[$n+1] 25 | sleep 5 26 | done 27 | set -e 28 | kubectl wait pod --timeout=-1s --for=condition=Ready -l '!job-name' -n knative-serving > /dev/null 29 | 30 | 31 | -------------------------------------------------------------------------------- /03-serving-samples.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | set -eo pipefail 4 | set -u 5 | 6 | cat < /dev/null 28 | SERVICE_URL=$(kubectl get ksvc hello -o jsonpath='{.status.url}') 29 | echo "The Knative Service hello endpoint is $SERVICE_URL" 30 | curl $SERVICE_URL -------------------------------------------------------------------------------- /04-eventing.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | set -eo pipefail 4 | set -u 5 | 6 | KNATIVE_EVENTING_VERSION=${KNATIVE_EVENTING_VERSION:-1.2.0} 7 | NAMESPACE=${NAMESPACE:-default} 8 | BROKER_NAME=${BROKER_NAME:-example-broker} 9 | 10 | 11 | 12 | n=0 13 | until [ $n -ge 2 ]; do 14 | kubectl apply -f https://github.com/knative/eventing/releases/download/knative-v${KNATIVE_EVENTING_VERSION}/eventing-crds.yaml > /dev/null && break 15 | echo "Eventing CRDs failed to install on first try" 16 | n=$[$n+1] 17 | sleep 5 18 | done 19 | kubectl wait --for=condition=Established --all crd > /dev/null 20 | 21 | n=0 22 | until [ $n -ge 2 ]; do 23 | kubectl apply -f https://github.com/knative/eventing/releases/download/knative-v${KNATIVE_EVENTING_VERSION}/eventing-core.yaml > /dev/null && break 24 | echo "Eventing Core failed to install on first try" 25 | n=$[$n+1] 26 | sleep 5 27 | done 28 | kubectl wait pod --timeout=-1s --for=condition=Ready -l '!job-name' -n knative-eventing > /dev/null 29 | 30 | n=0 31 | until [ $n -ge 2 ]; do 32 | kubectl apply -f https://github.com/knative/eventing/releases/download/knative-v${KNATIVE_EVENTING_VERSION}/in-memory-channel.yaml > /dev/null && break 33 | echo "Eventing Memory Channel failed to install on first try" 34 | n=$[$n+1] 35 | sleep 5 36 | done 37 | kubectl wait pod --timeout=-1s --for=condition=Ready -l '!job-name' -n knative-eventing > /dev/null 38 | 39 | n=0 40 | until [ $n -ge 2 ]; do 41 | kubectl apply -f https://github.com/knative/eventing/releases/download/knative-v${KNATIVE_EVENTING_VERSION}/mt-channel-broker.yaml > /dev/null && break 42 | echo "Eventing MT Memory Broker failed to install on first try" 43 | n=$[$n+1] 44 | sleep 5 45 | done 46 | kubectl wait pod --timeout=-1s --for=condition=Ready -l '!job-name' -n knative-eventing > /dev/null 47 | 48 | 49 | kubectl apply -f - < /dev/null 44 | 45 | kubectl -n $NAMESPACE apply -f - << EOF 46 | apiVersion: eventing.knative.dev/v1 47 | kind: Trigger 48 | metadata: 49 | name: hello-display 50 | spec: 51 | broker: $BROKER_NAME 52 | filter: 53 | attributes: 54 | type: greeting 55 | subscriber: 56 | ref: 57 | apiVersion: v1 58 | kind: Service 59 | name: hello-display 60 | EOF 61 | 62 | # Exposing broker externally using Knative Domain Mapping 63 | kubectl apply -f - < /dev/null 85 | 86 | 87 | MSG="" 88 | echo 'Sending Cloud Event to event broker' 89 | until [[ $MSG == *"Hello Knative"* ]]; do 90 | curl -s "http://broker-ingress.knative-eventing.${KNATIVE_DOMAIN}/$NAMESPACE/$BROKER_NAME" \ 91 | -X POST \ 92 | -H "Ce-Id: say-hello" \ 93 | -H "Ce-Specversion: 1.0" \ 94 | -H "Ce-Type: greeting" \ 95 | -H "Ce-Source: not-sendoff" \ 96 | -H "Content-Type: application/json" \ 97 | -d '{"msg":"Hello Knative!"}' > /dev/null 98 | sleep 5 99 | MSG=$(kubectl -n $NAMESPACE logs -l app=hello-display --tail=100 | grep msg || true) 100 | done 101 | echo "Cloud Event Delivered $MSG" | head -1 102 | 103 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Knative on Kind (KonK) 2 | 3 | Setup [Knative](https://knative.dev) on [Kind](https://kind.sigs.k8s.io/) 4 | 5 | Get Serverless Apps up and running on your workstation in minutes. 6 | 7 | Checkout my tutorials for other kubernetes like [docker-desktop](https://github.com/csantanapr/knative-docker-desktop) and [minikube](https://github.com/csantanapr/knative-minikube). 8 | 9 | Please refer and complete the tasks specified the "Install Docker Desktop" and "Install Kind" section before executing the command below 10 | 11 | TLDR; 12 | ```bash 13 | curl -sL get.konk.dev | bash 14 | ``` 15 | 16 | If you only need the install without the sample apps then use `curl -sL install.konk.dev | bash` 17 | 18 | >Updated and verified on 2021/03/09 with: 19 | >- Knative Serving 1.2.2 20 | >- Knative Kourier 1.2.0 21 | >- Knative Eventing 1.2.0 22 | >- Kind version 0.11.1 23 | >- Kubernetes version 1.23.4 24 | 25 | 26 | ## Install Docker Desktop 27 | To use kind, you will also need to [install docker](https://docs.docker.com/install/). 28 | 29 | Docker post installation configuration to run docker commands as non-root logged in user without sudo 30 | Note: Make sure group called "docker" exists on the vm/bare-metal compute instance prior to adding user to docker group 31 | ```bash 32 | sudo usermod -aG docker $USER 33 | ``` 34 | 35 | Refresh docker group membership of logged in non-root user 36 | ```bash 37 | newgrp docker 38 | ``` 39 | 40 | Verify that docker engine and CLI is working without sudo: 41 | ```bash 42 | docker version 43 | ``` 44 | 45 | ## Create cluster with Kind 46 | 47 | TLDR; `curl -sL https://raw.githubusercontent.com/csantanapr/knative-kind/master/01-kind.sh | sh` 48 | 49 | 1. Install or Upgrade [kind](https://github.com/kubernetes-sigs/kind/releases) Linux, MacOS, or Windows. Download kind binary and verify the version with 50 | ```bash 51 | kind --version 52 | ``` 53 | 1. Delete and create, start your cluster, we specify the config file above.A kind cluster config manifest is used to expose port `80` on the host to be later used by the Knative Kourier ingress. To use a different version of kubernetes check the image digest to use from the kind [release page](https://github.com/kubernetes-sigs/kind/releases) 54 | ``` 55 | kind delete cluster --name knative || true 56 | ``` 57 | ```yaml 58 | cat < **Note:** You can optionally specify a `kind` cluster name by setting the environment variable `KIND_CLUSTER_NAME`. 77 | 78 | ## Install Knative Serving 79 | 80 | TLDR; 81 | ``` 82 | curl -sL https://raw.githubusercontent.com/csantanapr/knative-kind/master/02-serving.sh | sh 83 | curl -sL https://raw.githubusercontent.com/csantanapr/knative-kind/master/02-kourier.sh | sh 84 | ``` 85 | 86 | 1. Select the version of Knative Serving to install 87 | ```bash 88 | export KNATIVE_VERSION="1.0.0" 89 | ``` 90 | 1. Install Knative Serving in namespace `knative-serving` 91 | ```bash 92 | kubectl apply -f https://github.com/knative/serving/releases/download/knative-v${KNATIVE_VERSION}/serving-crds.yaml 93 | kubectl wait --for=condition=Established --all crd 94 | 95 | kubectl apply -f https://github.com/knative/serving/releases/download/knative-v${KNATIVE_VERSION}/serving-core.yaml 96 | 97 | kubectl wait pod --timeout=-1s --for=condition=Ready -l '!job-name' -n knative-serving > /dev/null 98 | ``` 99 | 1. Select the version of Knative Net Kourier to install 100 | ```bash 101 | export KNATIVE_NET_KOURIER_VERSION="1.0.0" 102 | ``` 103 | 104 | 1. Install Knative Layer kourier in namespace `kourier-system` 105 | ```bash 106 | kubectl apply -f https://github.com/knative/net-kourier/releases/download/knative-v${KNATIVE_NET_KOURIER_VERSION}/kourier.yaml 107 | kubectl wait pod --timeout=-1s --for=condition=Ready -l '!job-name' -n kourier-system 108 | kubectl wait pod --timeout=-1s --for=condition=Ready -l '!job-name' -n knative-serving 109 | ``` 110 | 1. Set the environment variable `EXTERNAL_IP` to External IP Address of the Worker Node 111 | ```bash 112 | EXTERNAL_IP="127.0.0.1" 113 | ``` 114 | 2. Set the environment variable `KNATIVE_DOMAIN` as the DNS domain using `sslip.io` 115 | ```bash 116 | KNATIVE_DOMAIN="$EXTERNAL_IP.sslip.io" 117 | echo KNATIVE_DOMAIN=$KNATIVE_DOMAIN 118 | ``` 119 | Double-check DNS is resolving 120 | ```bash 121 | dig $KNATIVE_DOMAIN 122 | ``` 123 | 1. Configure DNS for Knative Serving 124 | ```bash 125 | kubectl patch configmap -n knative-serving config-domain -p "{\"data\": {\"$KNATIVE_DOMAIN\": \"\"}}" 126 | ``` 127 | 1. Configure Kourier to listen for http port 80 on the node 128 | ```bash 129 | cat <