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28 lines
626 B
Go
28 lines
626 B
Go
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package discoveryutils
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import (
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"net"
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"regexp"
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"strconv"
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)
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// SanitizeLabelName replaces anything that doesn't match
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// client_label.LabelNameRE with an underscore.
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//
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// This has been copied from Prometheus sources at util/strutil/strconv.go
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func SanitizeLabelName(name string) string {
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return invalidLabelCharRE.ReplaceAllString(name, "_")
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}
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var (
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invalidLabelCharRE = regexp.MustCompile(`[^a-zA-Z0-9_]`)
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)
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// JoinHostPort returns host:port.
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//
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// Host may be dns name, ipv4 or ipv6 address.
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func JoinHostPort(host string, port int) string {
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portStr := strconv.Itoa(port)
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return net.JoinHostPort(host, portStr)
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}
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