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profile.py
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#input
func_name = "w1-ssd"
nodeAffinity_required_filters = ['homo3']
nodeAffinity_preferred_sort = ['homo2', 'homo3']
podAntiAffinity_preferred_functionName = []
podAntiAffinity_required_functionName = []
affinity={}
#nodeAffinity
if nodeAffinity_required_filters or nodeAffinity_preferred_sort:
affinity['nodeAffinity']={}
#requiredDuringSchedulingIgnoredDuringExecution
if nodeAffinity_required_filters:
affinity["nodeAffinity"]['requiredDuringSchedulingIgnoredDuringExecution']={
"nodeSelectorTerms": [
{
"matchExpressions": [
{
"key": "kubernetes.io/hostname",
"operator": "In",
"values": nodeAffinity_required_filters
}
]
}
]
}
#preferredDuringSchedulingIgnoredDuringExecution
if nodeAffinity_preferred_sort:
affinity["nodeAffinity"]["preferredDuringSchedulingIgnoredDuringExecution"]=[
{
"preference": {
"matchExpressions": [
{
"key": "kubernetes.io/hostname",
"operator": "In",
"values": nodeAffinity_preferred_sort,
}
]
},
"weight": 50
}
]
#podAntiAffinity
if podAntiAffinity_required_functionName or podAntiAffinity_preferred_functionName:
affinity['podAntiAffinity']={}
#requiredDuringSchedulingIgnoredDuringExecution
if podAntiAffinity_required_functionName:
affinity["podAntiAffinity"]["requiredDuringSchedulingIgnoredDuringExecution"] = [
{
"labelSelector": {
"matchExpressions": [
{
"key": "faas_function",
"operator": "In",
"values": podAntiAffinity_required_functionName,
}
]
},
"topologyKey": "kubernetes.io/hostname"
}
]
#preferredDuringSchedulingIgnoredDuringExecution
if podAntiAffinity_preferred_functionName:
affinity["podAntiAffinity"]["preferredDuringSchedulingIgnoredDuringExecution"] = [
{
"podAffinityTerm": {
"labelSelector": {
"matchExpressions": [
{
"key": "faas_function",
"operator": "In",
"values": podAntiAffinity_preferred_functionName,
}
]
},
"topologyKey": "kubernetes.io/hostname"
},
"weight": 50
}
]
#create kubectl command
api_version = "openfaas.com/v1"
kind = "Profile"
namespace = "openfaas"
operation = "safe_patch"
manifest={
"metadata":{
"name": func_name,
"namespace": namespace,
},
"spec":{
"affinity":affinity
}
}
print(manifest)
'''
{
"apiVersion": "openfaas.com/v1",
"kind": "Profile",
"metadata": {
},
"spec": {
"affinity": {
"nodeAffinity": {
"preferredDuringSchedulingIgnoredDuringExecution": [
{
"preference": {
"matchExpressions": [
{
"key": "kubernetes.io/hostname",
"operator": "In",
"values": [
"homo2"
]
}
]
},
"weight": 50
}
],
"requiredDuringSchedulingIgnoredDuringExecution": {
"nodeSelectorTerms": [
{
"matchExpressions": [
{
"key": "kubernetes.io/hostname",
"operator": "In",
"values": [
"homo1",
"homo6",
"homo8",
"homo10",
"homo7"
]
}
]
}
]
}
},
"podAntiAffinity": {
"preferredDuringSchedulingIgnoredDuringExecution": [
{
"podAffinityTerm": {
"labelSelector": {
"matchExpressions": [
{
"key": "faas_function",
"operator": "In",
"values": [
"homo9"
]
}
]
},
"topologyKey": "kubernetes.io/hostname"
},
"weight": 50
}
],
"requiredDuringSchedulingIgnoredDuringExecution": [
{
"labelSelector": {
"matchExpressions": [
{
"key": "faas_function",
"operator": "In",
"values": [
"homo3"
]
}
]
},
"topologyKey": "kubernetes.io/hostname"
}
]
}
}
}
}
'''