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

Fixes #7993
master
Nitish Tiwari 5 years ago committed by kannappanr
parent d759a7ce99
commit 43c72374d4
  1. 14
      dockerscripts/healthcheck.go

@ -39,7 +39,8 @@ const (
healthPath = "/minio/health/live"
timeout = time.Duration(30 * time.Second)
tcp = "tcp"
anyIP = ":::"
anyIPv6 = ":::"
anyIPv4 = "0.0.0.0"
)
// returns container boot time by finding
@ -71,14 +72,17 @@ func findEndpoint() (string, error) {
scanner.Split(bufio.ScanLines)
// MinIO works on TCP and it is supposed to be
// the only process listening on a port on any IP address
// (on :::) inside container.
// Since MinIO is running as non-root user, we can
// (on ::: or 0.0.0.0) inside container.
// Since MinIO may run as non-root user, we can
// not depend on the PID/Program name column
// of netstat output
for scanner.Scan() {
line := scanner.Text()
if strings.Contains(line, tcp) && strings.Contains(line, anyIP) {
newLine := strings.Replace(line, anyIP, "127.0.0.1:", 1)
if strings.Contains(line, tcp) && (strings.Contains(line, anyIPv6) || strings.Contains(line, anyIPv4)) {
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)
// index 3 in the row has the Local address
// find the last index of ":" - address will

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