For #1594, detect and disable daemon for docker. 3.0.127

README.md

@@ -146,6 +146,7 @@ For previous versions, please read:
 
 ## V3 changes
 
+* v3.0, 2020-03-12, For [#1594][bug #1594], detect and disable daemon for docker. 3.0.127
 * v3.0, 2020-03-12, For [#1634][bug #1634], always check status in thread loop. 3.0.126
 * v3.0, 2020-03-11, For [#1634][bug #1634], refactor output with datetime for ingest/encoder/exec. 3.0.125
 * v3.0, 2020-03-11, For [#1634][bug #1634], fix quit by accident SIGTERM while killing FFMPEG. 3.0.124
@@ -1664,6 +1665,7 @@ Winlin
 [bug #1579]: https://github.com/ossrs/srs/issues/1579
 [bug #1598]: https://github.com/ossrs/srs/issues/1598
 [bug #1634]: https://github.com/ossrs/srs/issues/1634
+[bug #1594]: https://github.com/ossrs/srs/issues/1594
 [bug #yyyyyyyyyyyyy]: https://github.com/ossrs/srs/issues/yyyyyyyyyyyyy
 
 [exo #828]: https://github.com/google/ExoPlayer/pull/828

trunk/conf/full.conf

@@ -93,6 +93,10 @@ grace_final_wait 3200;
 # @see https://github.com/ossrs/srs/issues/1579#issuecomment-587475077
 # default: off
 force_grace_quit off;
+# Whether disable daemon for docker.
+# If on, it will set daemon to off in docker, even daemon is on.
+# default: on
+disable_daemon_for_docker on;
 
 #############################################################################################
 # heartbeat/stats sections

trunk/src/app/srs_app_config.cpp

@@ -3488,7 +3488,7 @@ srs_error_t SrsConfig::check_normal_config()
             && n != "http_server" && n != "stream_caster"
             && n != "utc_time" && n != "work_dir" && n != "asprocess"
             && n != "ff_log_level" && n != "grace_final_wait" && n != "force_grace_quit"
-            && n != "grace_start_wait" && n != "empty_ip_ok"
+            && n != "grace_start_wait" && n != "empty_ip_ok" && n != "disable_daemon_for_docker"
             ) {
             return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "illegal directive %s", n.c_str());
         }
@@ -4099,6 +4099,18 @@ bool SrsConfig::is_force_grace_quit()
     return SRS_CONF_PERFER_FALSE(conf->arg0());
 }
 
+bool SrsConfig::disable_daemon_for_docker()
+{
+    static bool DEFAULT = true;
+
+    SrsConfDirective* conf = root->get("disable_daemon_for_docker");
+    if (!conf || conf->arg0().empty()) {
+        return DEFAULT;
+    }
+
+    return SRS_CONF_PERFER_TRUE(conf->arg0());
+}
+
 vector<SrsConfDirective*> SrsConfig::get_stream_casters()
 {
     srs_assert(root);

trunk/src/app/srs_app_config.hpp

@@ -476,6 +476,8 @@ public:
     virtual srs_utime_t get_grace_final_wait();
     // Whether force to gracefully quit, never fast quit.
     virtual bool is_force_grace_quit();
+    // Whether disable daemon for docker.
+    virtual bool disable_daemon_for_docker();
 // stream_caster section
 public:
     // Get all stream_caster in config file.

trunk/src/core/srs_core_version3.hpp

@@ -24,6 +24,6 @@
 #ifndef SRS_CORE_VERSION3_HPP
 #define SRS_CORE_VERSION3_HPP
 
-#define SRS_VERSION3_REVISION 126
+#define SRS_VERSION3_REVISION 127
 
 #endif

trunk/src/main/srs_main_server.cpp

@@ -48,6 +48,7 @@ using namespace std;
 #include <srs_core_performance.hpp>
 #include <srs_app_utility.hpp>
 #include <srs_core_autofree.hpp>
+#include <srs_kernel_file.hpp>
 
 // pre-declare
 srs_error_t run(SrsServer* svr);
@@ -350,6 +351,36 @@ string srs_getenv(const char* name)
     return "";
 }
 
+// Detect docker by https://stackoverflow.com/a/41559867
+srs_error_t srs_detect_docker(bool* is_docker)
+{
+    srs_error_t err = srs_success;
+
+    *is_docker = false;
+
+    SrsFileReader fr;
+    if ((err = fr.open("/proc/1/cgroup")) != srs_success) {
+        return err;
+    }
+
+    ssize_t nn;
+    char buf[1024];
+    if ((err = fr.read(buf, sizeof(buf), &nn)) != srs_success) {
+        return err;
+    }
+
+    if (nn <= 0) {
+        return err;
+    }
+
+    string s(buf, nn);
+    if (srs_string_contains(s, "/docker")) {
+        *is_docker = true;
+    }
+
+    return err;
+}
+
 srs_error_t run(SrsServer* svr)
 {
     srs_error_t err = srs_success;
@@ -359,8 +390,22 @@ srs_error_t run(SrsServer* svr)
         return srs_error_wrap(err, "server initialize");
     }
 
+    // Load daemon from config, disable it for docker.
+    // @see https://github.com/ossrs/srs/issues/1594
+    bool in_daemon = _srs_config->get_daemon();
+    if (in_daemon && _srs_config->disable_daemon_for_docker()) {
+        bool is_docker = false;
+        err = srs_detect_docker(&is_docker);
+        srs_error_reset(err); // Ignore any error while detecting docker.
+
+        if (is_docker) {
+            srs_warn("disable daemon for docker");
+            in_daemon = false;
+        }
+    }
+
     // If not daemon, directly run master.
-    if (!_srs_config->get_daemon()) {
+    if (!in_daemon) {
         if ((err = run_master(svr)) != srs_success) {
             return srs_error_wrap(err, "run master");
         }