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Tiltfile
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Tiltfile
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# -*- mode: Python -*-
envsubst_cmd = "./hack/tools/bin/envsubst"
kubectl_cmd = "./hack/tools/bin/kubectl"
tools_bin = "./hack/tools/bin"
#Add tools to path
os.putenv("PATH", os.getenv("PATH") + ":" + tools_bin)
update_settings(k8s_upsert_timeout_secs = 60) # on first tilt up, often can take longer than 30 seconds
# set defaults
settings = {
"allowed_contexts": [
"kind-capz",
],
"deploy_cert_manager": True,
"preload_images_for_kind": True,
"kind_cluster_name": "capz",
"capi_version": "v1.1.2",
"cert_manager_version": "v1.1.0",
"kubernetes_version": "v1.22.6",
"aks_kubernetes_version": "v1.22.4",
}
keys = ["AZURE_SUBSCRIPTION_ID", "AZURE_TENANT_ID", "AZURE_CLIENT_SECRET", "AZURE_CLIENT_ID"]
# global settings
settings.update(read_json(
"tilt-settings.json",
default = {},
))
if settings.get("trigger_mode") == "manual":
trigger_mode(TRIGGER_MODE_MANUAL)
if "allowed_contexts" in settings:
allow_k8s_contexts(settings.get("allowed_contexts"))
if "default_registry" in settings:
default_registry(settings.get("default_registry"))
# deploy CAPI
def deploy_capi():
version = settings.get("capi_version")
capi_uri = "https://github.com/kubernetes-sigs/cluster-api/releases/download/{}/cluster-api-components.yaml".format(version)
cmd = "curl -sSL {} | {} | {} apply -f -".format(capi_uri, envsubst_cmd, kubectl_cmd)
local(cmd, quiet = True)
if settings.get("extra_args"):
extra_args = settings.get("extra_args")
if extra_args.get("core"):
core_extra_args = extra_args.get("core")
if core_extra_args:
for namespace in ["capi-system", "capi-webhook-system"]:
patch_args_with_extra_args(namespace, "capi-controller-manager", core_extra_args)
if extra_args.get("kubeadm-bootstrap"):
kb_extra_args = extra_args.get("kubeadm-bootstrap")
if kb_extra_args:
patch_args_with_extra_args("capi-kubeadm-bootstrap-system", "capi-kubeadm-bootstrap-controller-manager", kb_extra_args)
def patch_args_with_extra_args(namespace, name, extra_args):
args_str = str(local("{} get deployments {} -n {} -o jsonpath={{.spec.template.spec.containers[1].args}}".format(kubectl_cmd, name, namespace)))
args_to_add = [arg for arg in extra_args if arg not in args_str]
if args_to_add:
args = args_str[1:-1].split()
args.extend(args_to_add)
patch = [{
"op": "replace",
"path": "/spec/template/spec/containers/1/args",
"value": args,
}]
local("{} patch deployment {} -n {} --type json -p='{}'".format(kubectl_cmd, name, namespace, str(encode_json(patch)).replace("\n", "")))
# Users may define their own Tilt customizations in tilt.d. This directory is excluded from git and these files will
# not be checked in to version control.
def include_user_tilt_files():
user_tiltfiles = listdir("tilt.d")
for f in user_tiltfiles:
include(f)
def append_arg_for_container_in_deployment(yaml_stream, name, namespace, contains_image_name, args):
for item in yaml_stream:
if item["kind"] == "Deployment" and item.get("metadata").get("name") == name and item.get("metadata").get("namespace") == namespace:
containers = item.get("spec").get("template").get("spec").get("containers")
for container in containers:
if contains_image_name in container.get("image"):
container.get("args").extend(args)
def fixup_yaml_empty_arrays(yaml_str):
yaml_str = yaml_str.replace("conditions: null", "conditions: []")
return yaml_str.replace("storedVersions: null", "storedVersions: []")
def validate_auth():
substitutions = settings.get("kustomize_substitutions", {})
os.environ.update(substitutions)
for sub in substitutions:
if sub[-4:] == "_B64":
os.environ[sub[:-4]] = base64_decode(os.environ[sub])
missing = [k for k in keys if not os.environ.get(k)]
if missing:
fail("missing kustomize_substitutions keys {} in tilt-setting.json".format(missing))
tilt_helper_dockerfile_header = """
# Tilt image
FROM golang:1.17 as tilt-helper
# Support live reloading with Tilt
RUN wget --output-document /restart.sh --quiet https://raw.githubusercontent.com/windmilleng/rerun-process-wrapper/master/restart.sh && \
wget --output-document /start.sh --quiet https://raw.githubusercontent.com/windmilleng/rerun-process-wrapper/master/start.sh && \
chmod +x /start.sh && chmod +x /restart.sh
"""
tilt_dockerfile_header = """
FROM gcr.io/distroless/base:debug as tilt
WORKDIR /
COPY --from=tilt-helper /start.sh .
COPY --from=tilt-helper /restart.sh .
COPY manager .
"""
# Install the OpenTelemetry helm chart
def observability():
instrumentation_key = os.getenv("AZURE_INSTRUMENTATION_KEY", "")
if instrumentation_key == "":
warn("AZURE_INSTRUMENTATION_KEY is not set, so traces won't be exported to Application Insights")
trace_links = []
else:
trace_links = [link("https://ms.portal.azure.com/#blade/HubsExtension/BrowseResource/resourceType/microsoft.insights%2Fcomponents", "App Insights")]
k8s_yaml(helm(
"./hack/observability/opentelemetry/chart",
name = "opentelemetry-collector",
namespace = "capz-system",
values = ["./hack/observability/opentelemetry/values.yaml"],
set = ["config.exporters.azuremonitor.instrumentation_key=" + instrumentation_key],
))
k8s_yaml(helm(
"./hack/observability/jaeger/chart",
name = "jaeger-all-in-one",
namespace = "capz-system",
set = [
"crd.install=false",
"rbac.create=false",
"resources.limits.cpu=200m",
"resources.limits.memory=256Mi",
],
))
k8s_resource(
workload = "jaeger-all-in-one",
new_name = "traces: jaeger-all-in-one",
port_forwards = [port_forward(16686, name = "View traces", link_path = "/search?service=capz")],
links = trace_links,
labels = ["observability"],
)
k8s_resource(
workload = "prometheus-operator",
new_name = "metrics: prometheus-operator",
port_forwards = [port_forward(9090, name = "View metrics")],
extra_pod_selectors = [{"app": "prometheus"}],
labels = ["observability"],
)
k8s_resource(workload = "opentelemetry-collector", labels = ["observability"])
k8s_resource(workload = "opentelemetry-collector-agent", labels = ["observability"])
k8s_resource(workload = "capz-controller-manager", labels = ["cluster-api"])
k8s_resource(workload = "capz-nmi", labels = ["cluster-api"])
# Build CAPZ and add feature gates
def capz():
# Apply the kustomized yaml for this provider
yaml = str(kustomizesub("./hack/observability")) # build an observable kind deployment by default
# add extra_args if they are defined
if settings.get("extra_args"):
azure_extra_args = settings.get("extra_args").get("azure")
if azure_extra_args:
yaml_dict = decode_yaml_stream(yaml)
append_arg_for_container_in_deployment(yaml_dict, "capz-controller-manager", "capz-system", "cluster-api-azure-controller", azure_extra_args)
yaml = str(encode_yaml_stream(yaml_dict))
yaml = fixup_yaml_empty_arrays(yaml)
ldflags = str(local("hack/version.sh"))
# Set up a local_resource build of the provider's manager binary.
local_resource(
"manager",
cmd = 'mkdir -p .tiltbuild;CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags \'-extldflags "-static" ' + ldflags + "' -o .tiltbuild/manager",
deps = ["api", "azure", "config", "controllers", "exp", "feature", "pkg", "util", "go.mod", "go.sum", "main.go"],
labels = ["cluster-api"],
)
dockerfile_contents = "\n".join([
tilt_helper_dockerfile_header,
tilt_dockerfile_header,
])
entrypoint = ["sh", "/start.sh", "/manager"]
extra_args = settings.get("extra_args")
if extra_args:
entrypoint.extend(extra_args)
# Set up an image build for the provider. The live update configuration syncs the output from the local_resource
# build into the container.
docker_build(
ref = "gcr.io/k8s-staging-cluster-api-azure/cluster-api-azure-controller",
context = "./.tiltbuild/",
dockerfile_contents = dockerfile_contents,
target = "tilt",
entrypoint = entrypoint,
only = "manager",
live_update = [
sync(".tiltbuild/manager", "/manager"),
run("sh /restart.sh"),
],
ignore = ["templates"],
)
k8s_yaml(blob(yaml))
def create_identity_secret():
#create secret for identity password
local(kubectl_cmd + " delete secret cluster-identity-secret --ignore-not-found=true")
os.putenv("AZURE_CLUSTER_IDENTITY_SECRET_NAME", "cluster-identity-secret")
os.putenv("AZURE_CLUSTER_IDENTITY_SECRET_NAMESPACE", "default")
os.putenv("CLUSTER_IDENTITY_NAME", "cluster-identity")
os.putenv("AZURE_CLIENT_SECRET_B64", base64_encode(os.environ.get("AZURE_CLIENT_SECRET")))
local("cat templates/azure-cluster-identity/secret.yaml | " + envsubst_cmd + " | " + kubectl_cmd + " apply -f -", quiet = True, echo_off = True)
os.unsetenv("AZURE_CLIENT_SECRET_B64")
def create_crs():
# create config maps
local(kubectl_cmd + " delete configmaps calico-addon --ignore-not-found=true")
local(kubectl_cmd + " create configmap calico-addon --from-file=templates/addons/calico.yaml")
local(kubectl_cmd + " delete configmaps calico-ipv6-addon --ignore-not-found=true")
local(kubectl_cmd + " create configmap calico-ipv6-addon --from-file=templates/addons/calico-ipv6.yaml")
local(kubectl_cmd + " delete configmaps flannel-windows-addon --ignore-not-found=true")
local(kubectl_cmd + " delete configmaps csi-proxy-addon --ignore-not-found=true")
local(kubectl_cmd + " create configmap csi-proxy-addon --from-file=templates/addons/windows/csi-proxy/csi-proxy.yaml")
# need to set version for kube-proxy on windows.
os.putenv("KUBERNETES_VERSION", settings.get("kubernetes_version", {}))
local(kubectl_cmd + " create configmap flannel-windows-addon --from-file=templates/addons/windows/flannel/ --dry-run=client -o yaml | " + envsubst_cmd + " | " + kubectl_cmd + " apply -f -")
local(kubectl_cmd + " create configmap calico-windows-addon --from-file=templates/addons/windows/calico/ --dry-run=client -o yaml | " + envsubst_cmd + " | " + kubectl_cmd + " apply -f -")
# set up crs
local(kubectl_cmd + " apply -f templates/addons/calico-resource-set.yaml")
local(kubectl_cmd + " apply -f templates/addons/flannel-resource-set.yaml")
local(kubectl_cmd + " apply -f templates/addons/windows/csi-proxy/csi-proxy-resource-set.yaml")
# create flavor resources from cluster-template files in the templates directory
def flavors():
substitutions = settings.get("kustomize_substitutions", {})
az_key_b64_name = "AZURE_SSH_PUBLIC_KEY_B64"
az_key_name = "AZURE_SSH_PUBLIC_KEY"
default_key_path = "$HOME/.ssh/id_rsa.pub"
if substitutions.get(az_key_b64_name):
os.environ.update({az_key_b64_name: substitutions.get(az_key_b64_name)})
os.environ.update({az_key_name: base64_decode(substitutions.get(az_key_b64_name))})
else:
print("{} was not specified in tilt-settings.json, attempting to load {}".format(az_key_b64_name, default_key_path))
os.environ.update({az_key_b64_name: base64_encode_file(default_key_path)})
os.environ.update({az_key_name: read_file_from_path(default_key_path)})
template_list = [item for item in listdir("./templates")]
template_list = [template for template in template_list if os.path.basename(template).endswith("yaml")]
for template in template_list:
deploy_worker_templates(template, substitutions)
local_resource(
name = "delete-all-workload-clusters",
cmd = kubectl_cmd + " delete clusters --all --wait=false",
auto_init = False,
trigger_mode = TRIGGER_MODE_MANUAL,
labels = ["flavors"],
)
def deploy_worker_templates(template, substitutions):
# validate template exists
if not os.path.exists(template):
fail(template + " not found")
yaml = str(read_file(template))
flavor = os.path.basename(template).replace("cluster-template-", "").replace(".yaml", "")
# for the base cluster-template, flavor is "default"
flavor = os.path.basename(flavor).replace("cluster-template", "default")
# azure account and ssh replacements
for substitution in substitutions:
value = substitutions[substitution]
yaml = yaml.replace("${" + substitution + "}", value)
# if metadata defined for worker-templates in tilt_settings
if "worker-templates" in settings:
# first priority replacements defined per template
if "flavors" in settings.get("worker-templates", {}):
substitutions = settings.get("worker-templates").get("flavors").get(flavor, {})
for substitution in substitutions:
value = substitutions[substitution]
yaml = yaml.replace("${" + substitution + "}", value)
# second priority replacements defined common to templates
if "metadata" in settings.get("worker-templates", {}):
substitutions = settings.get("worker-templates").get("metadata", {})
for substitution in substitutions:
value = substitutions[substitution]
yaml = yaml.replace("${" + substitution + "}", value)
# programmatically define any remaining vars
# "windows" can not be for cluster name because it sets the dns to trademarked name during reconciliation
substitutions = {
"AZURE_LOCATION": "eastus",
"AZURE_VNET_NAME": "${CLUSTER_NAME}-vnet",
"AZURE_RESOURCE_GROUP": "${CLUSTER_NAME}-rg",
"CONTROL_PLANE_MACHINE_COUNT": "1",
"KUBERNETES_VERSION": settings.get("kubernetes_version"),
"AZURE_CONTROL_PLANE_MACHINE_TYPE": "Standard_D2s_v3",
"WORKER_MACHINE_COUNT": "2",
"AZURE_NODE_MACHINE_TYPE": "Standard_D2s_v3",
}
if flavor == "aks":
# AKS version support is usually a bit behind CAPI version, so use an older version
substitutions["KUBERNETES_VERSION"] = settings.get("aks_kubernetes_version")
for substitution in substitutions:
value = substitutions[substitution]
yaml = yaml.replace("${" + substitution + "}", value)
yaml = yaml.replace('"', '\\"') # add escape character to double quotes in yaml
local_resource(
name = os.path.basename(flavor),
cmd = "RANDOM=$(bash -c 'echo $RANDOM'); CLUSTER_NAME=" + flavor.replace("windows", "win") + "-$RANDOM; make generate-flavors; echo \"" + yaml + "\" > ./.tiltbuild/" + flavor + "; cat ./.tiltbuild/" + flavor + " | " + envsubst_cmd + " | " + kubectl_cmd + " apply -f - && echo \"Cluster \'$CLUSTER_NAME\' created, don't forget to delete\"",
auto_init = False,
trigger_mode = TRIGGER_MODE_MANUAL,
labels = ["flavors"],
)
def base64_encode(to_encode):
encode_blob = local("echo '{}' | tr -d '\n' | base64 - | tr -d '\n'".format(to_encode), quiet = True, echo_off = True)
return str(encode_blob)
def base64_encode_file(path_to_encode):
encode_blob = local("cat {} | tr -d '\n' | base64 - | tr -d '\n'".format(path_to_encode), quiet = True)
return str(encode_blob)
def read_file_from_path(path_to_read):
str_blob = local("cat {} | tr -d '\n'".format(path_to_read), quiet = True)
return str(str_blob)
def base64_decode(to_decode):
decode_blob = local("echo '{}' | base64 --decode -".format(to_decode), quiet = True, echo_off = True)
return str(decode_blob)
def kustomizesub(folder):
yaml = local("hack/kustomize-sub.sh {}".format(folder), quiet = True)
return yaml
def waitforsystem():
local(kubectl_cmd + " wait --for=condition=ready --timeout=300s pod --all -n capi-kubeadm-bootstrap-system")
local(kubectl_cmd + " wait --for=condition=ready --timeout=300s pod --all -n capi-kubeadm-control-plane-system")
local(kubectl_cmd + " wait --for=condition=ready --timeout=300s pod --all -n capi-system")
##############################
# Actual work happens here
##############################
validate_auth()
include_user_tilt_files()
load("ext://cert_manager", "deploy_cert_manager")
if settings.get("deploy_cert_manager"):
deploy_cert_manager()
deploy_capi()
create_identity_secret()
capz()
observability()
waitforsystem()
create_crs()
flavors()