Docker Logging: Unterschied zwischen den Versionen
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| (8 dazwischenliegende Versionen desselben Benutzers werden nicht angezeigt) | |||
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* Normalerweise werden Standard Output und Standard Error dem Docker-log übergeben. | * Normalerweise werden Standard Output und Standard Error dem Docker-log übergeben. | ||
| − | = | + | = Beispiele = |
| − | + | == Containerprotokolle anzeigen == | |
| − | * docker logs nginx | + | |
| + | * '''docker logs nginx''' | ||
| − | |||
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration | /docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration | ||
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/ | /docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/ | ||
| Zeile 35: | Zeile 35: | ||
2023/02/13 07:11:47 [notice] 1#1: start worker process 35 | 2023/02/13 07:11:47 [notice] 1#1: start worker process 35 | ||
2023/02/13 07:11:47 [notice] 1#1: start worker process 36 | 2023/02/13 07:11:47 [notice] 1#1: start worker process 36 | ||
| − | + | ||
| − | + | == neu einkommende Protokolleinträge anzeigen == | |
| − | + | ||
* '''docker logs -f nginx''' | * '''docker logs -f nginx''' | ||
| − | |||
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration | /docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration | ||
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/ | /docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/ | ||
| Zeile 63: | Zeile 62: | ||
2023/02/13 07:11:47 [notice] 1#1: start worker process 35 | 2023/02/13 07:11:47 [notice] 1#1: start worker process 35 | ||
2023/02/13 07:11:47 [notice] 1#1: start worker process 36 | 2023/02/13 07:11:47 [notice] 1#1: start worker process 36 | ||
| − | + | ||
| − | + | == CPU- und Speicherauslastung == | |
| − | + | ||
* '''docker stats''' | * '''docker stats''' | ||
| − | |||
CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS | CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS | ||
42f4afd9ad3d nginx 0.00% 9.316MiB / 11.46GiB 0.08% 1.53kB / 0B 4.1kB / 8.19kB 9 | 42f4afd9ad3d nginx 0.00% 9.316MiB / 11.46GiB 0.08% 1.53kB / 0B 4.1kB / 8.19kB 9 | ||
| − | + | ||
| − | * | + | * für bestimmte Container |
* '''docker stats nginx''' | * '''docker stats nginx''' | ||
| − | |||
CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS | CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS | ||
42f4afd9ad3d nginx 0.00% 9.316MiB / 11.46GiB 0.08% 1.53kB / 0B 4.1kB / 8.19kB 9 | 42f4afd9ad3d nginx 0.00% 9.316MiB / 11.46GiB 0.08% 1.53kB / 0B 4.1kB / 8.19kB 9 | ||
| − | + | ||
| − | + | == Laufende Prozesse in einem Container == | |
| + | |||
* '''docker top nginx''' | * '''docker top nginx''' | ||
| − | |||
UID PID PPID C STIME TTY TIME CMD | UID PID PPID C STIME TTY TIME CMD | ||
root 112223 112199 0 07:11 ? 00:00:00 nginx: master process nginx -g daemon off; | root 112223 112199 0 07:11 ? 00:00:00 nginx: master process nginx -g daemon off; | ||
| Zeile 93: | Zeile 90: | ||
systemd+ 112297 112223 0 07:11 ? 00:00:00 nginx: worker process | systemd+ 112297 112223 0 07:11 ? 00:00:00 nginx: worker process | ||
systemd+ 112298 112223 0 07:11 ? 00:00:00 nginx: worker process | systemd+ 112298 112223 0 07:11 ? 00:00:00 nginx: worker process | ||
| + | |||
| + | = Logging-Methoden = | ||
| + | |||
| + | * Die Logging-Methode kann durch die Auswahl eines anderen Logging-Treibers verändert werden | ||
| + | * über '''docker run […] --log-driver ''log_driver''''' kann der Treiber eingestellt werden | ||
| + | |||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | ! Treiber | ||
| + | ! Beschreibung | ||
| + | |- | ||
| + | | none | ||
| + | | No logs are available for the container and docker logs does not return any output. | ||
| + | |- | ||
| + | | local | ||
| + | | Logs are stored in a custom format designed for minimal overhead. | ||
| + | |- | ||
| + | | json-file | ||
| + | | The logs are formatted as JSON. The default logging driver for Docker. | ||
| + | |- | ||
| + | | syslog | ||
| + | | Writes logging messages to the syslog facility. The syslog daemon must be running on the host machine. | ||
| + | |- | ||
| + | | journald | ||
| + | | Writes log messages to journald. The journald daemon must be running on the host machine. | ||
| + | |- | ||
| + | | gelf | ||
| + | | Writes log messages to a Graylog Extended Log Format (GELF) endpoint such as Graylog or Logstash. | ||
| + | |- | ||
| + | | fluentd | ||
| + | | Writes log messages to fluentd (forward input). The fluentd daemon must be running on the host machine. | ||
| + | |- | ||
| + | | awslogs | ||
| + | | Writes log messages to Amazon CloudWatch Logs. | ||
| + | |- | ||
| + | | splunk | ||
| + | | Writes log messages to splunk using the HTTP Event Collector. | ||
| + | |- | ||
| + | | etwlogs | ||
| + | | Writes log messages as Event Tracing for Windows (ETW) events. Only available on Windows platforms. | ||
| + | |- | ||
| + | | gcplogs | ||
| + | | Writes log messages to Google Cloud Platform (GCP) Logging. | ||
| + | |- | ||
| + | | logentries | ||
| + | | Writes log messages to Rapid7 Logentries. | ||
| + | |} | ||
| + | |||
| + | = Links = | ||
| + | |||
| + | * https://docs.docker.com/config/containers/logging/configure/#supported-logging-drivers | ||
Aktuelle Version vom 6. März 2023, 14:52 Uhr
Syntax
- Für einen Container
- docker logs [OPTIONS] NAME
- Für Services/Tasks eines Docker-Swarms
- docker service logs [OPTIONS] NAME
- Normalerweise werden Standard Output und Standard Error dem Docker-log übergeben.
Beispiele
Containerprotokolle anzeigen
- docker logs nginx
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration /docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/ /docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh 10-listen-on-ipv6-by-default.sh: info: Getting the checksum of /etc/nginx/conf.d/default.conf 10-listen-on-ipv6-by-default.sh: info: Enabled listen on IPv6 in /etc/nginx/conf.d/default.conf /docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh /docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh /docker-entrypoint.sh: Configuration complete; ready for start up 2023/02/13 07:11:47 [notice] 1#1: using the "epoll" event method 2023/02/13 07:11:47 [notice] 1#1: nginx/1.23.3 2023/02/13 07:11:47 [notice] 1#1: built by gcc 10.2.1 20210110 (Debian 10.2.1-6) 2023/02/13 07:11:47 [notice] 1#1: OS: Linux 5.4.0-137-generic 2023/02/13 07:11:47 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1048576:1048576 2023/02/13 07:11:47 [notice] 1#1: start worker processes 2023/02/13 07:11:47 [notice] 1#1: start worker process 29 2023/02/13 07:11:47 [notice] 1#1: start worker process 30 2023/02/13 07:11:47 [notice] 1#1: start worker process 31 2023/02/13 07:11:47 [notice] 1#1: start worker process 32 2023/02/13 07:11:47 [notice] 1#1: start worker process 33 2023/02/13 07:11:47 [notice] 1#1: start worker process 34 2023/02/13 07:11:47 [notice] 1#1: start worker process 35 2023/02/13 07:11:47 [notice] 1#1: start worker process 36
neu einkommende Protokolleinträge anzeigen
- docker logs -f nginx
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration /docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/ /docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh 10-listen-on-ipv6-by-default.sh: info: Getting the checksum of /etc/nginx/conf.d/default.conf 10-listen-on-ipv6-by-default.sh: info: Enabled listen on IPv6 in /etc/nginx/conf.d/default.conf /docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh /docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh /docker-entrypoint.sh: Configuration complete; ready for start up 2023/02/13 07:11:47 [notice] 1#1: using the "epoll" event method 2023/02/13 07:11:47 [notice] 1#1: nginx/1.23.3 2023/02/13 07:11:47 [notice] 1#1: built by gcc 10.2.1 20210110 (Debian 10.2.1-6) 2023/02/13 07:11:47 [notice] 1#1: OS: Linux 5.4.0-137-generic 2023/02/13 07:11:47 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1048576:1048576 2023/02/13 07:11:47 [notice] 1#1: start worker processes 2023/02/13 07:11:47 [notice] 1#1: start worker process 29 2023/02/13 07:11:47 [notice] 1#1: start worker process 30 2023/02/13 07:11:47 [notice] 1#1: start worker process 31 2023/02/13 07:11:47 [notice] 1#1: start worker process 32 2023/02/13 07:11:47 [notice] 1#1: start worker process 33 2023/02/13 07:11:47 [notice] 1#1: start worker process 34 2023/02/13 07:11:47 [notice] 1#1: start worker process 35 2023/02/13 07:11:47 [notice] 1#1: start worker process 36
CPU- und Speicherauslastung
- docker stats
CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS 42f4afd9ad3d nginx 0.00% 9.316MiB / 11.46GiB 0.08% 1.53kB / 0B 4.1kB / 8.19kB 9
- für bestimmte Container
- docker stats nginx
CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS 42f4afd9ad3d nginx 0.00% 9.316MiB / 11.46GiB 0.08% 1.53kB / 0B 4.1kB / 8.19kB 9
Laufende Prozesse in einem Container
- docker top nginx
UID PID PPID C STIME TTY TIME CMD root 112223 112199 0 07:11 ? 00:00:00 nginx: master process nginx -g daemon off; systemd+ 112291 112223 0 07:11 ? 00:00:00 nginx: worker process systemd+ 112292 112223 0 07:11 ? 00:00:00 nginx: worker process systemd+ 112293 112223 0 07:11 ? 00:00:00 nginx: worker process systemd+ 112294 112223 0 07:11 ? 00:00:00 nginx: worker process systemd+ 112295 112223 0 07:11 ? 00:00:00 nginx: worker process systemd+ 112296 112223 0 07:11 ? 00:00:00 nginx: worker process systemd+ 112297 112223 0 07:11 ? 00:00:00 nginx: worker process systemd+ 112298 112223 0 07:11 ? 00:00:00 nginx: worker process
Logging-Methoden
- Die Logging-Methode kann durch die Auswahl eines anderen Logging-Treibers verändert werden
- über docker run […] --log-driver log_driver kann der Treiber eingestellt werden
| Treiber | Beschreibung |
|---|---|
| none | No logs are available for the container and docker logs does not return any output. |
| local | Logs are stored in a custom format designed for minimal overhead. |
| json-file | The logs are formatted as JSON. The default logging driver for Docker. |
| syslog | Writes logging messages to the syslog facility. The syslog daemon must be running on the host machine. |
| journald | Writes log messages to journald. The journald daemon must be running on the host machine. |
| gelf | Writes log messages to a Graylog Extended Log Format (GELF) endpoint such as Graylog or Logstash. |
| fluentd | Writes log messages to fluentd (forward input). The fluentd daemon must be running on the host machine. |
| awslogs | Writes log messages to Amazon CloudWatch Logs. |
| splunk | Writes log messages to splunk using the HTTP Event Collector. |
| etwlogs | Writes log messages as Event Tracing for Windows (ETW) events. Only available on Windows platforms. |
| gcplogs | Writes log messages to Google Cloud Platform (GCP) Logging. |
| logentries | Writes log messages to Rapid7 Logentries. |