Daan De Meyer
012d87c1fc
Add options to vmspawn to configure journal-remote disk usage limits when forwarding journal entries from the VM. These are passed through as --max-use=, --keep-free=, --max-file-size=, and --max-files= command-line arguments to systemd-journal-remote. Add --max-use=, --keep-free=, --max-file-size=, and --max-files= command-line options to systemd-journal-remote to allow overriding the corresponding settings from the configuration file. Add $SYSTEMD_JOURNAL_REMOTE_CONFIG_FILE environment variable support to systemd-journal-remote. When set, the specified file is used instead of the default configuration file and drop-in directories. When set to the empty string or /dev/null, configuration file parsing is skipped entirely. vmspawn sets this to /dev/null in the child process to avoid inheriting the host's journal-remote configuration. Make fork_notify() argv parameter optional. When NULL is passed, fork_notify() returns 0 in the child (with $NOTIFY_SOCKET set) and lets the caller run custom code before exec. Returns 1 in the parent. This allows vmspawn to set environment variables in the child without polluting the parent process. Co-developed-by: Claude Opus 4.6 <noreply@anthropic.com>
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