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4 changes: 2 additions & 2 deletions pkg/provider/apis/validation/validation.go
Original file line number Diff line number Diff line change
Expand Up @@ -35,8 +35,8 @@ var machineTypeRegex = regexp.MustCompile(`^[a-z]+\d+[a-z]*\.\d+[a-z]*(\.[a-z]+\
var regionRegex = regexp.MustCompile(`^[a-z0-9]+$`)

// availabilityZoneRegex is a regex pattern for validating STACKIT availability zone format
// Pattern: lowercase letters/digits followed by digits, dash, then digit(s) (e.g., eu01-1, eu01-2)
var availabilityZoneRegex = regexp.MustCompile(`^[a-z0-9]+-\d+$`)
// Pattern: lowercase letters/digits followed by dash, then digits or letter 'm' (e.g., eu01-1, eu01-2, eu01-m)
var availabilityZoneRegex = regexp.MustCompile(`^[a-z0-9]+-(?:\d+|m)$`)

// labelKeyRegex validates Kubernetes label keys (must start/end with alphanumeric, can contain -, _, ., /)
// Maximum length: 63 characters
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19 changes: 19 additions & 0 deletions pkg/provider/apis/validation/validation_fields_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -129,13 +129,32 @@ var _ = Describe("ValidateProviderSpecNSecret", func() {
"eu01-2",
"eu02-1",
"eu02-4",
"eu01-m",
"eu02-m",
}
for _, az := range testCases {
providerSpec.AvailabilityZone = az
errors := ValidateProviderSpecNSecret(providerSpec, secret)
Expect(errors).To(BeEmpty(), "AvailabilityZone %q should be valid", az)
}
})

It("should fail with invalid availabilityZone formats", func() {
invalidCases := []string{
"eu01-a", // letter other than 'm'
"eu01-m1", // 'm' followed by digit
"eu01", // missing dash and suffix
"eu01-", // missing suffix
"-1", // missing prefix
"eu01-mm", // multiple letters
}
for _, az := range invalidCases {
providerSpec.AvailabilityZone = az
errors := ValidateProviderSpecNSecret(providerSpec, secret)
Expect(errors).NotTo(BeEmpty(), "AvailabilityZone %q should be invalid", az)
Expect(errors[0].Error()).To(ContainSubstring("invalid format"))
}
})
})

Context("AffinityGroup validation", func() {
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