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Kubernetes conjur deployment scripts exist #2

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3 changes: 3 additions & 0 deletions .gitignore
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standby-seed.tar
haproxy.cfg
tmp/
33 changes: 33 additions & 0 deletions 0_check_dependencies.sh
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#!/bin/bash
set -eo pipefail

. utils.sh

check_env_var "CONJUR_NAMESPACE_NAME"
check_env_var "DOCKER_REGISTRY_URL"
check_env_var "DOCKER_REGISTRY_PATH"
check_env_var "CONJUR_ACCOUNT"
check_env_var "CONJUR_ADMIN_PASSWORD"

echo "Before we proceed..."

# Confirm logged into Kubernetes.
read -p "Are you logged in to a Kubernetes cluster (yes/no)? " choice
case "$choice" in
yes ) ;;
* ) echo "You must login to a Kubernetes cluster before running this demo." && exit 1;;
esac

read -p "Are you logged into the $DOCKER_REGISTRY_URL Docker registry (yes/no)? " choice
case "$choice" in
yes ) echo "Great! Let's go.";;
* ) echo "You must login to your Docker registry before running this demo." && exit 1;;
esac

conjur_appliance_image=$DOCKER_REGISTRY_PATH/conjur-appliance:$CONJUR_NAMESPACE_NAME

# Confirms Conjur image is present.
if [[ "$(docker images -q $conjur_appliance_image 2> /dev/null)" == "" ]]; then
echo "You must have the Conjur v4 Appliance tagged as $conjur_appliance_image in your Docker engine to run this script."
exit 1
fi
17 changes: 17 additions & 0 deletions 1_create_conjur_namespace.sh
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#!/bin/bash
set -euo pipefail

. utils.sh

announce "Creating Conjur namespace."

set_namespace default

if has_namespace "$CONJUR_NAMESPACE_NAME"; then
echo "Namespace '$CONJUR_NAMESPACE_NAME' exists, not going to create it."
set_namespace $CONJUR_NAMESPACE_NAME
else
echo "Creating '$CONJUR_NAMESPACE_NAME' namespace."
kubectl create namespace "$CONJUR_NAMESPACE_NAME"
set_namespace $CONJUR_NAMESPACE_NAME
fi
14 changes: 14 additions & 0 deletions 2_build_and_push_containers.sh
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#!/bin/bash
set -euo pipefail

. utils.sh

announce "Building and pushing haproxy image."

pushd build/haproxy
./build.sh
popd

docker_tag_and_push "haproxy"

echo "Docker images pushed."
38 changes: 38 additions & 0 deletions 3_deploy_conjur_cluster.sh
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#!/bin/bash
set -euo pipefail

. utils.sh

announce "Creating Conjur cluster."

set_namespace $CONJUR_NAMESPACE_NAME

if ! [ "${DOCKER_EMAIL}" = "" ]; then
announce "Creating image pull secret."

kubectl delete --ignore-not-found secret conjurregcred

kubectl create secret docker-registry conjurregcred \
--docker-server=$DOCKER_REGISTRY_URL \
--docker-username=$DOCKER_USERNAME \
--docker-password=$DOCKER_PASSWORD \
--docker-email=$DOCKER_EMAIL
fi

conjur_appliance_image=$DOCKER_REGISTRY_PATH/conjur-appliance:$CONJUR_NAMESPACE_NAME

echo "deploying main cluster"
sed -e "s#{{ CONJUR_APPLIANCE_IMAGE }}#$conjur_appliance_image#g" ./manifests/conjur-cluster.yaml |
kubectl create -f -

echo "deploying followers"
sed -e "s#{{ CONJUR_APPLIANCE_IMAGE }}#$conjur_appliance_image#g" ./manifests/conjur-follower.yaml |
sed -e "s#{{ AUTHENTICATOR_SERVICE_ID }}#$AUTHENTICATOR_SERVICE_ID#g" |
kubectl create -f -

sleep 10

echo "Waiting for Conjur pods to launch..."
wait_for_node $(get_master_pod_name)

echo "Cluster created."
22 changes: 22 additions & 0 deletions 4_configure_master.sh
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#!/bin/bash
set -euo pipefail

. utils.sh

announce "Configuring master pod."

set_namespace $CONJUR_NAMESPACE_NAME

master_pod_name=$(get_master_pod_name)

kubectl label --overwrite pod $master_pod_name role=master

# Configure Conjur master server using evoke.
kubectl exec $master_pod_name -- evoke configure master \
-h conjur-master \
--master-altnames localhost,conjur-master.$CONJUR_NAMESPACE_NAME.svc.cluster.local \
--follower-altnames conjur-follower,conjur-follower.$CONJUR_NAMESPACE_NAME.svc.cluster.local \
-p $CONJUR_ADMIN_PASSWORD \
$CONJUR_ACCOUNT

echo "Master pod configured."
22 changes: 22 additions & 0 deletions 5_create_load_balancer.sh
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#!/bin/bash
set -euo pipefail

. utils.sh

announce "Creating load balancer for master and standbys."

set_namespace $CONJUR_NAMESPACE_NAME

docker_image=${DOCKER_REGISTRY_PATH}/haproxy:$CONJUR_NAMESPACE_NAME

sed -e "s#{{ DOCKER_IMAGE }}#$docker_image#g" ./manifests/haproxy-conjur-master.yaml |
kubectl create -f -

wait_for_node 'haproxy-conjur-master'

echo "Configuring load balancer..."

# Update HAProxy config to reflect Conjur cluster and restart daemon.
haproxy/update_haproxy.sh haproxy-conjur-master

echo "Load balancer created and configured."
38 changes: 38 additions & 0 deletions 6_configure_standbys.sh
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#!/bin/bash
set -euo pipefail

. utils.sh

announce "Configuring standbys."

set_namespace $CONJUR_NAMESPACE_NAME

master_pod_name=$(get_master_pod_name)

echo "Preparing standby seed files..."

mkdir -p tmp
kubectl exec $master_pod_name evoke seed standby conjur-standby > ./tmp/standby-seed.tar

master_pod_ip=$(kubectl describe pod $master_pod_name | awk '/IP:/ { print $2 }')
pod_list=$(kubectl get pods -l role=unset --no-headers | awk '{ print $1 }')

for pod_name in $pod_list; do
printf "Configuring standby %s...\n" $pod_name

kubectl label --overwrite pod $pod_name role=standby

copy_file_to_container "./tmp/standby-seed.tar" "/tmp/standby-seed.tar" "$pod_name"

kubectl exec $pod_name evoke unpack seed /tmp/standby-seed.tar
kubectl exec $pod_name -- evoke configure standby -i $master_pod_ip
done

rm -rf tmp

echo "Standbys configured."
echo "Starting synchronous replication..."

mastercmd evoke replication sync

echo "Standbys configured."
31 changes: 31 additions & 0 deletions 7_configure_followers.sh
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#!/bin/bash
set -euo pipefail

. utils.sh

announce "Configuring followers."

set_namespace $CONJUR_NAMESPACE_NAME

master_pod_name=$(get_master_pod_name)

echo "Preparing follower seed files..."

mkdir -p tmp
kubectl exec $master_pod_name evoke seed follower conjur-follower > ./tmp/follower-seed.tar

master_pod_ip=$(kubectl describe pod $master_pod_name | awk '/IP:/ { print $2 }')
pod_list=$(kubectl get pods -l role=follower --no-headers | awk '{ print $1 }')

for pod_name in $pod_list; do
printf "Configuring follower %s...\n" $pod_name

copy_file_to_container "./tmp/follower-seed.tar" "/tmp/follower-seed.tar" "$pod_name"

kubectl exec $pod_name evoke unpack seed /tmp/follower-seed.tar
kubectl exec $pod_name -- evoke configure follower
done

rm -rf tmp

echo "Followers configured."
16 changes: 16 additions & 0 deletions 8_print_config.sh
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#!/bin/bash
set -euo pipefail

. utils.sh

set_namespace $CONJUR_NAMESPACE_NAME

announce "
Conjur cluster is ready.

Conjur UI address:
https://$(get_master_service_ip):443

Conjur admin credentials:
admin / $(rotate_api_key)
"
147 changes: 146 additions & 1 deletion README.md
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# kubernetes-conjur-deploy
Scripts for deploying Conjur to Kubernetes

This repository contains scripts for deploying a Conjur v4 cluster to a
Kubernetes environment.

# Setup

The Conjur deployment scripts pick up configuration details from local
environment variables. The setup instructions below walk you through the
necessary steps for configuring your Kubernetes environment and show you which
variables need to be set before deploying.

### Docker

[Install Docker](https://www.docker.com/get-docker) on your local machine if you
do not already have it.

You must have push access to a Docker registry in order to run these deploy
scripts. Provide the URL and full path of your registry:

```
export DOCKER_REGISTRY_URL=<registry-domain>
export DOCKER_REGISTRY_PATH=<registry-domain>/<additional-pathing>
```

If you are using a private registry, you will also need to provide login
credentials that are used by the deployment scripts to create a [secret for
pulling images](https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/#create-a-secret-in-the-cluster-that-holds-your-authorization-token):

```
export DOCKER_USERNAME=<your-username>
export DOCKER_PASSWORD=<your-password>
export DOCKER_EMAIL=<your-email>
```

Please make sure that you are logged in to the registry before deploying.

### Kubernetes

Before deploying Conjur, you must first use `kubectl` to connect to your
Kubernetes environment with a user that has the `cluster-admin` role. The user
must be able to create namespaces and cluster roles.

#### Conjur Namespace

Provide the name of a namespace in which to deploy Conjur:

```
export CONJUR_NAMESPACE_NAME=<my-namespace>
```

#### The `conjur-authenticator` Cluster Role

Conjur's Kubernetes authenticator requires the following privileges:

- [`"get"`, `"list"`] on `"pods"` for confirming a pod's namespace membership
- [`"create"`, `"get"`] on "pods/exec" for injecting a certificate into a pod

The deploy scripts include a manifest that defines the `conjur-authenticator`
cluster role, which grants these privileges. Create the role now (note that
your user will need to have the `cluster-admin` role to do so):

```
kubectl create -f ./manifests/conjur-authenticator-role.yaml
```

### Conjur

#### Appliance Image

You need to obtain a Docker image of the Conjur v4 appliance and push it to your
Docker registry with the tag:

```
$DOCKER_REGISTRY_PATH/conjur-appliance:$CONJUR_NAMESPACE_NAME
```

#### Appliance Configuration

When setting up a new Conjur installation, you must provide an account name and
a password for the admin account:

```
export CONJUR_ACCOUNT=<my_account_name>
export CONJUR_ADMIN_PASSWORD=<my_admin_password>
```

Conjur uses [declarative policy](https://developer.conjur.net/policy) to control
access to secrets. After deploying Conjur, you need to load a policy that
defines a `webservice` to represent the Kubernetes authenticator:

```
- !policy
id: conjur/authn-k8s/{{ SERVICE_ID }}
```

The `SERVICE_ID` should describe the Kubernetes cluster in which your Conjur
deployment resides. For example, it might be something like `kubernetes/prod`.
For Conjur configuration purposes, you need to provide this value to the Conjur
deploy scripts like so:

```
export AUTHENTICATOR_SERVICE_ID=<service_id>
```

This `service_id` can be anything you like, but it's important to make sure
that it matches the value that you intend to use in Conjur Policy.

# Usage

### Deploying Conjur

Run `./start` to deploy Conjur. This executes the numbered scripts in sequence
to create and configure a Conjur cluster comprised of one Master, two Standbys,
and two read-only Followers. The final step will print out the necessary info
for interacting with Conjur through the CLI or UI.

### Conjur CLI

The deploy scripts include a manifest for creating a Conjur CLI container within
the Kubernetes environment that can then be used to interact with Conjur. Deploy
the CLI pod and SSH into it:

```
kubectl create -f ./manifests/conjur-cli.yaml
kubectl exec -it [cli-pod-name] bash
```

Once inside the CLI container, use the admin credentials to connect to Conjur:

```
conjur init -h conjur-master
```

Follow our [CLI usage instructions](https://developer.conjur.net/cli#quickstart)
to get started with the Conjur CLI.

### Conjur UI

Visit the Conjur UI URL in your browser and login with the admin credentials to
access the Conjur UI.

# Test App Demo

The [kubernetes-conjur-demo repo](https://github.com/conjurdemos/kubernetes-conjur-demo)
sets up test applications that retrieve secrets from Conjur and serves as a
useful reference when setting up your own applications to integrate with Conjur.