systemd-journal-gatewayd.service, systemd-journal-gatewayd.socket, systemd-journal-gatewayd - HTTP server

Accept:format

       Recognized formats:

       text/plain
           The default. Plaintext syslog-like output, one line per journal entry (like journalctl--outputshort).

           Added in version 197.

       application/json
           Entries are formatted as JSON data structures, one per line (like journalctl--outputjson). See
           JournalJSONFormat[1] for more information.

           Added in version 197.

       text/event-stream
           Entries are formatted as JSON data structures, wrapped in a format suitable for Server-SentEvents[2]
           (like journalctl--outputjson-sse).

           Added in version 229.

       application/vnd.fdo.journal
           Entries are serialized into a binary (but mostly text-based) stream suitable for backups and network
           transfer (like journalctl--outputexport). See JournalExportFormat[3] for more information.

           Added in version 197.

systemd-journal-gatewayd serves journal events over the network. Clients must connect using HTTP. The
       server listens on port 19531 by default. If --cert= is specified, the server expects HTTPS connections.

       The program is started by systemd(1) and expects to receive a single socket. Use systemctlstartsystemd-journal-gatewayd.socket to start the service, and systemctlenablesystemd-journal-gatewayd.socket to have it started on boot.

       Retrieve events from this boot from local journal in JournalExportFormat[3]:

           curl --silent -H'Accept: application/vnd.fdo.journal' \
                  'http://localhost:19531/entries?boot'

       Listen for core dumps:

           curl 'http://localhost:19531/entries?follow&MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1'

       systemd-journal-gatewayd.service, systemd-journal-gatewayd.socket, systemd-journal-gatewayd - HTTP server
       for journal events

        1. Journal JSON Format
           https://systemd.io/JOURNAL_EXPORT_FORMATS#journal-json-format

        2. Server-Sent Events
           https://developer.mozilla.org/en-US/docs/Server-sent_events/Using_server-sent_events

        3. Journal Export Format
           https://systemd.io/JOURNAL_EXPORT_FORMATS#journal-export-format

systemd 257.7                                                                SYSTEMD-JOURNAL-GATEWAYD.SERVICE(8)

       The following options are understood:

       --cert=
           Specify the path to a file or AF_UNIX stream socket to read the server certificate from. The
           certificate must be in PEM format. This option switches systemd-journal-gatewayd into HTTPS mode and
           must be used together with --key=.

           Added in version 198.

       --key=
           Specify the path to a file or AF_UNIX stream socket to read the secret server key corresponding to
           the certificate specified with --cert= from. The key must be in PEM format.

           Added in version 198.

       --trust=
           Specify the path to a file or AF_UNIX stream socket to read a CA certificate from. The certificate
           must be in PEM format.

           Added in version 236.

       --system, --user
           Limit served entries to entries from system services and the kernel, or to entries from services of
           current user. This has the same meaning as --system and --user options for journalctl(1). If neither
           is specified, all accessible entries are served.

           Added in version 249.

       -m, --merge
           Serve entries interleaved from all available journals, including other machines. This has the same
           meaning as --merge option for journalctl(1).

           Added in version 249.

       -DDIR, --directory=DIR
           Takes a directory path as argument. If specified, systemd-journal-gatewayd will serve the specified
           journal directory DIR instead of the default runtime and system journal paths.

           Added in version 232.

       --file=GLOB
           Takes a file glob as an argument. Serve entries from the specified journal files matching GLOB
           instead of the default runtime and system journal paths. May be specified multiple times, in which
           case files will be suitably interleaved. This has the same meaning as --file= option for
           journalctl(1).

           Added in version 249.

       -h, --help
           Print a short help text and exit.

       --version
           Print a short version string and exit.

Range:entries=cursor[[:num_skip]:num_entries]Range:realtime=[since]:[until][[:num_skip]:num_entries]

       where cursor is a cursor string, since and until are timestamps (seconds since 1970-01-01 00:00:00 UTC),
       num_skip is an integer, num_entries is an unsigned integer.

       Range defaults to all available events.

systemd(1), journalctl(1), systemd.journal-fields(7), systemd-journald.service(8), systemd-journal-remote.service(8), systemd-journal-upload.service(8)

       The following URLs are recognized:

       /browse
           Interactive browsing.

           Added in version 197.

       /entries[?option1&option2=value...]
           Retrieval of events in various formats.

           The Accept: part of the HTTP header determines the format. Supported values are described below.

           The Range: part of the HTTP header determines the range of events returned. Supported values are
           described below.

           GET parameters can be used to modify what events are returned. Supported parameters are described
           below.

           Added in version 197.

       /machine
           Return a JSON structure describing the machine.

           Example:

               { "machine_id" : "8cf7ed9d451ea194b77a9f118f3dc446",
                 "boot_id" : "3d3c9efaf556496a9b04259ee35df7f7",
                 "hostname" : "fedora",
                 "os_pretty_name" : "Fedora 19 (Rawhide)",
                 "virtualization" : "kvm",
                 ...}

           Added in version 197.

       /fields/FIELD_NAME
           Return a list of values of this field present in the logs.

           Added in version 197.

       systemd-journal-gatewayd.service

       systemd-journal-gatewayd.socket

       /usr/lib/systemd/systemd-journal-gatewayd [OPTIONS...]

       Following parameters can be used as part of the URL:

       follow
           wait for new events (like journalctl--follow, except that the number of events returned is not
           limited).

           Added in version 197.

       discrete
           Test that the specified cursor refers to an entry in the journal. Returns just this entry.

           Added in version 197.

       boot
           Limit events to the current boot of the system (like journalctl-b).

           Added in version 197.

       KEY=match
           Match journal fields. See systemd.journal-fields(7).

           Added in version 197.