forked from rook/rook
Blaine Gardner
feff587992
The Ceph mon flag `--public-bind-addr` does not keep the same port as the previous daemon run when the port is left off the flag's value. A port is undesired since that could interfere with Nautilus' msgr2 protocol, so instead configure the mon's services to forward the default bind port on pods (6789) to the mon endpoint's port. The endpoint port will be 6789 for new mons, but it may be 6790 for legacy clusters. Signed-off-by: Blaine Gardner <blaine.gardner@suse.com>
69 lines
1.7 KiB
Go
69 lines
1.7 KiB
Go
/*
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Copyright 2018 The Rook Authors. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package k8sutil
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import "fmt"
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const (
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maxPerChar = 26
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)
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// IndexToName converts an index to a daemon name based on as few letters of the alphabet as possible.
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// For example:
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// 0 -> a
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// 1 -> b
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// 25 -> z
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// 26 -> aa
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func IndexToName(index int) string {
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var result string
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for {
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i := index % maxPerChar
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c := 'z' - maxPerChar + i + 1
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result = fmt.Sprintf("%c%s", c, result)
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if index < maxPerChar {
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break
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}
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// subtract 1 since the character conversion is zero-based
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index = (index / maxPerChar) - 1
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}
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return result
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}
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// NameToIndex converts a daemon name to an index, which is the inverse of IndexToName
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// For example:
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// a -> 0
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// b -> 1
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func NameToIndex(name string) (int, error) {
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factor := 1
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for i := 1; i < len(name); i++ {
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factor *= maxPerChar
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}
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var result int
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for _, c := range name {
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charVal := int(maxPerChar - ('z' - c))
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if charVal < 1 || charVal > maxPerChar {
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return -1, fmt.Errorf("invalid char '%c' (%d) in %s", c, charVal, name)
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}
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if factor == 1 {
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// The least significant letter needs to be 0-based so we subtract 1
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result += charVal - 1
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} else {
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result += charVal * factor
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}
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factor /= maxPerChar
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}
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return result, nil
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}
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