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Fix healthcheck to look for entry of all IPv4 addresses (0.0.0.0) (#8046)

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Fixes #7993
This commit is contained in:
Nitish Tiwari 2019-08-09 13:58:37 +05:30 committed by kannappanr
parent d759a7ce99
commit 43c72374d4
1 changed files with 9 additions and 5 deletions
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14
dockerscripts/healthcheck.go
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@ -39,7 +39,8 @@ const (
healthPath = "/minio/health/live" healthPath = "/minio/health/live"
timeout = time.Duration(30 * time.Second) timeout = time.Duration(30 * time.Second)
tcp = "tcp" tcp = "tcp"
anyIP = ":::" anyIPv6 = ":::"
anyIPv4 = "0.0.0.0"
) )
// returns container boot time by finding // returns container boot time by finding
@ -71,14 +72,17 @@ func findEndpoint() (string, error) {
scanner.Split(bufio.ScanLines) scanner.Split(bufio.ScanLines)
// MinIO works on TCP and it is supposed to be // MinIO works on TCP and it is supposed to be
// the only process listening on a port on any IP address // the only process listening on a port on any IP address
// (on :::) inside container. // (on ::: or 0.0.0.0) inside container.
// Since MinIO is running as non-root user, we can // Since MinIO may run as non-root user, we can
// not depend on the PID/Program name column // not depend on the PID/Program name column
// of netstat output // of netstat output
for scanner.Scan() { for scanner.Scan() {
line := scanner.Text() line := scanner.Text()
if strings.Contains(line, tcp) && strings.Contains(line, anyIP) { if strings.Contains(line, tcp) && (strings.Contains(line, anyIPv6) || strings.Contains(line, anyIPv4)) {
newLine := strings.Replace(line, anyIP, "127.0.0.1:", 1) newLine := strings.Replace(line, anyIPv4, "127.0.0.1:", 1)
if strings.Contains(line, anyIPv6) {
newLine = strings.Replace(line, anyIPv6, "::1:", 1)
}
fields := strings.Fields(newLine) fields := strings.Fields(newLine)
// index 3 in the row has the Local address // index 3 in the row has the Local address
// find the last index of ":" - address will // find the last index of ":" - address will