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add support for mac and some notes #3

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add support for mac and some notes #3

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cb27537
add kubectl to list of requirements
cpretzer Jun 5, 2020
50ef6b5
add support for mac
cpretzer Jul 20, 2020
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1 change: 1 addition & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ failover & traffic-splitting in a multi-cluster mesh of Kubernetes clusters.
- [`k3d:v3`](https://github.com/rancher/k3d/releases/tag/v3.0.0-beta.1)
- [`smallstep/cli`](https://github.com/smallstep/cli/releases)
- [`linkerd:edge-20.5.3`+](https://github.com/linkerd/linkerd2/releases)
- [`kubectl 1.16`+](https://github.com/kubernetes/kubectl/releases)

[`./create.sh`](./create.sh) initializes a temporary CA and a set of clusters
in `k3d`: _dev_, _east_, and _west_.
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28 changes: 24 additions & 4 deletions create.sh
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Expand Up @@ -8,7 +8,27 @@ set -x

export ORG_DOMAIN="${ORG_DOMAIN:-k3d.example.com}"

CA_DIR=$(mktemp --tmpdir="${TMPDIR:-/tmp}" -d k3d-ca.XXXXX)
if ! command -v linkerd &>/dev/null
then
echo "Install Linkerd with the command"
echo "curl -sL https://run.linkerd.io/install | sh"
exit 1
fi

case $(uname) in
Darwin)
# host_platform=darwin
CA_DIR=$(mktemp -d k3d-ca.XXXXX)
;;
Linux)
# host_platform=linux
CA_DIR=$(mktemp --tmpdir="${TMPDIR:-/tmp}" -d k3d-ca.XXXXX)
;;
*)
echo "Unknown operating system: $(uname)"
exit 1
;;
esac

# Generate the trust roots. These never touch the cluster. In the real world
# we'd squirrel these away in a vault.
Expand All @@ -20,18 +40,18 @@ step certificate create \

port=6440
for cluster in dev east west ; do
if k3d get cluster "$cluster" >/dev/null 2>&1 ; then
if k3d cluster get "$cluster" >/dev/null 2>&1 ; then
echo "Already exists: $cluster" >&2
exit 1
fi

k3d create cluster "$cluster" \
k3d cluster create "$cluster" \
--api-port="$((port++))" \
--network=multicluster-example \
--k3s-server-arg="--cluster-domain=$cluster.${ORG_DOMAIN}" \
--wait

k3d get kubeconfig "$cluster"
k3d kubeconfig get "$cluster"

# Check that the cluster is up and running.
while ! linkerd --context="k3d-$cluster" check --pre ; do :; done
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