Lennart Poettering
55db8dc12b
When systemd-imds is invoked as a Varlink service (via the new systemd-imds-metrics.socket), it now acts as an io.systemd.Metrics provider for systemd-report. It connects to systemd-imdsd over the existing io.systemd.InstanceMetadata interface to acquire the real data and re-exposes the detected cloud vendor plus the well-known hostname, region, zone and public IPv4/IPv6 fields as metrics in the io.systemd.InstanceMetadata.* namespace. The metrics logic lives entirely on the client side (imds-tool-metrics.c); systemd-imdsd is unchanged. Each metric is acquired on demand with a blocking call to the daemon, benefiting from its local cache. Fields that are unset or unsupported by the vendor are simply omitted. The metrics socket is statically enabled into sockets.target.wants/.
23 lines
639 B
SYSTEMD
23 lines
639 B
SYSTEMD
# SPDX-License-Identifier: LGPL-2.1-or-later
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#
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# This file is part of systemd.
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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[Unit]
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Description=Cloud Instance Metadata Metrics
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Documentation=man:systemd-imds(1)
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DefaultDependencies=no
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Before=sockets.target
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[Socket]
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ListenStream=/run/systemd/report/io.systemd.InstanceMetadata
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FileDescriptorName=varlink
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SocketMode=0666
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Accept=yes
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MaxConnectionsPerSource=16
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RemoveOnStop=yes
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