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Merge pull request #65024 from jingax10/calico_custom_branch

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Automatic merge from submit-queue (batch tested with PRs 65024, 65287, 65345, 64693, 64941). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Add a helper function to customize K8s addon yamls and use it to customize Calico addons on GKE

**What this PR does / why we need it**:

Allow customizing Calico addon in GCP. With #65022, this allows us to do a couple of things:, e.g., run Calico 3.0+ on GCP, use a non-default MTU etc.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #65045, #65067

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
This commit is contained in:
Kubernetes Submit Queue 2018-06-22 06:10:10 -07:00 committed by GitHub
commit b48339704f
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20
cluster/gce/gci/configure-helper.sh
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@ -2286,6 +2286,23 @@ EOF
fi
}
# A helper function to set up a custom yaml for a k8s addon.
#
# $1: addon category under /etc/kubernetes
# $2: manifest source dir
# $3: manifest file
# $4: custom yaml
function setup-addon-custom-yaml {
local -r manifest_path="/etc/kubernetes/$1/$2/$3"
local -r custom_yaml="$4"
if [ -n "${custom_yaml:-}" ]; then
# Replace with custom manifest.
cat > "${manifest_path}" <<EOF
$custom_yaml
EOF
fi
}
# Prepares the manifests of k8s addons, and starts the addon manager.
# Vars assumed:
# CLUSTER_NAME
@ -2437,6 +2454,9 @@ EOF
if [[ "${NETWORK_POLICY_PROVIDER:-}" == "calico" ]]; then
setup-addon-manifests "addons" "calico-policy-controller"
setup-addon-custom-yaml "addons" "calico-policy-controller" "calico-node-daemonset.yaml" "${CUSTOM_CALICO_NODE_DAEMONSET_YAML:-}"
setup-addon-custom-yaml "addons" "calico-policy-controller" "typha-deployment.yaml" "${CUSTOM_TYPHA_DEPLOYMENT_YAML:-}"
# Configure Calico CNI directory.
local -r ds_file="${dst_dir}/calico-policy-controller/calico-node-daemonset.yaml"
sed -i -e "s@__CALICO_CNI_DIR__@/home/kubernetes/bin@g" "${ds_file}"