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AMIFamily Defaulting and Validation #1296

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merged 5 commits into from
Feb 9, 2022
Merged

AMIFamily Defaulting and Validation #1296

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cf3f1a2
bottlerocket validation and some fixes
bwagner5 Feb 8, 2022
d289878
pr comments
bwagner5 Feb 8, 2022
723ebd2
case sensitive
bwagner5 Feb 8, 2022
f1cb013
dedupe ca bundle
bwagner5 Feb 8, 2022
4c70160
pr updates
bwagner5 Feb 9, 2022
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12 changes: 2 additions & 10 deletions pkg/cloudprovider/aws/ami.go
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Original file line number Diff line number Diff line change
Expand Up @@ -106,17 +106,9 @@ func (p *AMIProvider) getBottlerocketAlias(version string, instanceType cloudpro

func (p *AMIProvider) getSSMQuery(ctx context.Context, constraints *v1alpha1.Constraints, instanceType cloudprovider.InstanceType, version string) string {
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ssmQuery := p.getAL2Alias(version, instanceType)
if constraints.AMIFamily != nil {
if *constraints.AMIFamily == v1alpha1.OperatingSystemBottleRocket {
ssmQuery = p.getBottlerocketAlias(version, instanceType)
} else if *constraints.AMIFamily == v1alpha1.OperatingSystemEKSOptimized {
ssmQuery = p.getAL2Alias(version, instanceType)
} else {
logging.FromContext(ctx).Warnf("AMIFamily was set, but was not one of %s or %s. Setting to %s as the default.", v1alpha1.OperatingSystemEKSOptimized, v1alpha1.OperatingSystemBottleRocket, v1alpha1.OperatingSystemEKSOptimized)
ssmQuery = p.getAL2Alias(version, instanceType)
}
if strings.EqualFold(aws.StringValue(constraints.AMIFamily), v1alpha1.AMIFamilyBottlerocket) {
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ssmQuery = p.getBottlerocketAlias(version, instanceType)
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}

return ssmQuery
}

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8 changes: 8 additions & 0 deletions pkg/cloudprovider/aws/apis/v1alpha1/provider_defaults.go
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Expand Up @@ -25,6 +25,7 @@ import (
func (c *Constraints) Default(ctx context.Context) {
c.defaultArchitecture()
c.defaultCapacityTypes()
c.defaultAMIFamily()
}

func (c *Constraints) defaultCapacityTypes() {
Expand Down Expand Up @@ -54,3 +55,10 @@ func (c *Constraints) defaultArchitecture() {
Values: []string{v1alpha5.ArchitectureAmd64},
})
}

func (c *Constraints) defaultAMIFamily() {
if c.AMIFamily != nil {
return
}
c.AMIFamily = &AMIFamilyEKSOptimized
}
10 changes: 9 additions & 1 deletion pkg/cloudprovider/aws/apis/v1alpha1/provider_validation.go
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Expand Up @@ -33,6 +33,7 @@ func (a *AWS) validate() (errs *apis.FieldError) {
a.validateSecurityGroups(),
a.validateTags(),
a.validateMetadataOptions(),
a.validateAMIFamily(),
)
}

Expand Down Expand Up @@ -121,9 +122,16 @@ func (a *AWS) validateHTTPTokens() *apis.FieldError {
return a.validateStringEnum(*a.MetadataOptions.HTTPTokens, "httpTokens", ec2.LaunchTemplateHttpTokensState_Values())
}

func (a *AWS) validateAMIFamily() *apis.FieldError {
if a.AMIFamily == nil {
return nil
}
return a.validateStringEnum(*a.AMIFamily, "amiFamily", SupportedAMIFamilies)
}

func (a *AWS) validateStringEnum(value, field string, validValues []string) *apis.FieldError {
for _, validValue := range validValues {
if value == validValue {
if strings.EqualFold(value, validValue) {
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return nil
}
}
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8 changes: 6 additions & 2 deletions pkg/cloudprovider/aws/apis/v1alpha1/register.go
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Expand Up @@ -32,8 +32,12 @@ var (
AWSRestrictedLabelDomains = []string{
"k8s.aws",
}
OperatingSystemBottleRocket = "Bottlerocket"
OperatingSystemEKSOptimized = "EKSOptimized"
AMIFamilyBottlerocket = "Bottlerocket"
AMIFamilyEKSOptimized = "EKSOptimized"
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Reminder to make this EKSOptimizedLinux

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Can't we just support Operating system separately and keep AMIFamily the actual family? So if AMIFamily was EKSOptimized but the pod requested Windows, we'd just give them windows EKS Optimized?

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@ellistarn ellistarn Feb 8, 2022 •
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This assumes a certain amount of parity between EKSOptimized. In general, I agree with you. IIRC, this was a request from @suket22.

SupportedAMIFamilies = []string{
AMIFamilyBottlerocket,
AMIFamilyEKSOptimized,
}
)

var (
Expand Down
42 changes: 10 additions & 32 deletions pkg/cloudprovider/aws/launchtemplate.go
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Expand Up @@ -107,19 +107,9 @@ func (p *LaunchTemplateProvider) Get(ctx context.Context, constraints *v1alpha1.
// Construct launch templates
launchTemplates := map[string][]cloudprovider.InstanceType{}
for amiID, instanceTypes := range amis {
// Get userData for Node
var userData string
if constraints.AMIFamily != nil {
if strings.EqualFold(*constraints.AMIFamily, v1alpha1.OperatingSystemBottleRocket) {
userData, err = p.getBottleRocketUserData(ctx, constraints, additionalLabels)
} else if strings.EqualFold(*constraints.AMIFamily, v1alpha1.OperatingSystemEKSOptimized) {
userData, err = p.getEKSOptimizedUserData(ctx, constraints, instanceTypes, additionalLabels)
} else {
logging.FromContext(ctx).Warnf("AMIFamily was set, but was not one of %s or %s. Setting to %s as the default.", v1alpha1.OperatingSystemEKSOptimized, v1alpha1.OperatingSystemBottleRocket, v1alpha1.OperatingSystemEKSOptimized)
userData, err = p.getEKSOptimizedUserData(ctx, constraints, instanceTypes, additionalLabels)
}
} else {
userData, err = p.getEKSOptimizedUserData(ctx, constraints, instanceTypes, additionalLabels)
userData, err := p.getEKSOptimizedUserData(ctx, constraints, instanceTypes, additionalLabels)
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if strings.EqualFold(aws.StringValue(constraints.AMIFamily), v1alpha1.AMIFamilyBottlerocket) {
userData, err = p.getBottlerocketUserData(ctx, constraints, additionalLabels)
}
if err != nil {
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return nil, err
Expand Down Expand Up @@ -252,19 +242,11 @@ func sortedKeys(m map[string]string) []string {
return keys
}

func (p *LaunchTemplateProvider) getBottleRocketUserData(ctx context.Context, constraints *v1alpha1.Constraints, additionalLabels map[string]string) (string, error) {
var userData string
userData += fmt.Sprintf(`[settings.kubernetes]
cluster-name = "%s"
api-server = "%s"
`,
injection.GetOptions(ctx).ClusterName,
injection.GetOptions(ctx).ClusterEndpoint)

func (p *LaunchTemplateProvider) getBottlerocketUserData(ctx context.Context, constraints *v1alpha1.Constraints, additionalLabels map[string]string) (string, error) {
userData := fmt.Sprintf("[settings.kubernetes]\ncluster-name = \"%s\"\napi-server = \"%s\"\n", injection.GetOptions(ctx).ClusterName, injection.GetOptions(ctx).ClusterEndpoint)
if constraints.KubeletConfiguration.ClusterDNS != nil {
userData += fmt.Sprintf("cluster-dns-ip = \"%s\"", constraints.KubeletConfiguration.ClusterDNS)
userData += fmt.Sprintf("cluster-dns-ip = \"%s\"\n", constraints.KubeletConfiguration.ClusterDNS)
}

caBundle, err := p.GetCABundle(ctx)
if err != nil {
return "", fmt.Errorf("getting ca bundle for user data, %w", err)
Expand All @@ -275,22 +257,18 @@ api-server = "%s"

nodeLabelArgs := functional.UnionStringMaps(additionalLabels, constraints.Labels)
if len(nodeLabelArgs) > 0 {
userData += `[settings.kubernetes.node-labels]
`
userData += "[settings.kubernetes.node-labels]\n"
for key, val := range nodeLabelArgs {
userData += fmt.Sprintf("\"%s\" = \"%s\"", key, val)
userData += fmt.Sprintf("\"%s\" = \"%s\"\n", key, val)
}
}

if len(constraints.Taints) > 0 {
userData += `[settings.kubernetes.node-taints]
`
userData += "[settings.kubernetes.node-taints]\n"
sorted := sortedTaints(constraints.Taints)
for _, taint := range sorted {
userData += fmt.Sprintf("%s=%s:%s", taint.Key, taint.Value, taint.Effect)
userData += fmt.Sprintf("%s=%s:%s\n", taint.Key, taint.Value, taint.Effect)
}
}

return base64.StdEncoding.EncodeToString([]byte(userData)), nil
}

Expand Down