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ostree-prepare-root: Log journal message after finding deployment

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Log a structured journal message when resolving the deployment path.
This will be used by the `rpm-ostree history` command to find past
deployments the system has booted into.

Closes: #1842
Approved by: cgwalters
This commit is contained in:
Jonathan Lebon 2018-09-25 15:42:28 -04:00 committed by Atomic Bot
parent 78747a8a17
commit 298c601d88
2 changed files with 22 additions and 2 deletions
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5
Makefile-switchroot.am
View File

@ -57,6 +57,11 @@ ostree_remount_SOURCES = \
$(NULL)
ostree_remount_CPPFLAGS = $(AM_CPPFLAGS) -Isrc/switchroot
if BUILDOPT_SYSTEMD
ostree_prepare_root_CPPFLAGS += -DHAVE_SYSTEMD=1
ostree_prepare_root_LDADD = $(AM_LDFLAGS) $(LIBSYSTEMD_LIBS)
endif
# This is the "new mode" of using a generator for /var; see
# https://github.com/ostreedev/ostree/issues/855
if BUILDOPT_SYSTEMD_AND_LIBMOUNT

19
src/switchroot/ostree-prepare-root.c
View File

@ -47,6 +47,11 @@
#include <errno.h>
#include <ctype.h>
#ifdef HAVE_LIBSYSTEMD
#include <systemd/sd-journal.h>
#define OSTREE_PREPARE_ROOT_DEPLOYMENT_MSG SD_ID128_MAKE(71,70,33,6a,73,ba,46,01,ba,d3,1a,f8,88,aa,0d,f7)
#endif
#include "ostree-mount-util.h"
/* Initialized early in main */
@ -71,9 +76,19 @@ resolve_deploy_path (const char * root_mountpoint)
deploy_path = realpath (destpath, NULL);
if (deploy_path == NULL)
err (EXIT_FAILURE, "realpath(%s) failed", destpath);
if (stat (deploy_path, &stbuf) < 0)
err (EXIT_FAILURE, "stat(%s) failed", deploy_path);
/* Quiet logs if there's no journal */
if (!running_as_pid1)
printf ("Resolved OSTree target to: %s\n", deploy_path);
#ifdef HAVE_LIBSYSTEMD
const char *resolved_path = deploy_path + strlen (root_mountpoint);
sd_journal_send ("MESSAGE=Resolved OSTree target to: %s", deploy_path,
"MESSAGE_ID=" SD_ID128_FORMAT_STR,
SD_ID128_FORMAT_VAL(OSTREE_PREPARE_ROOT_DEPLOYMENT_MSG),
"DEPLOYMENT_PATH=%s", resolved_path,
"DEPLOYMENT_DEVICE=%u", stbuf.st_dev,
"DEPLOYMENT_INODE=%u", stbuf.st_ino,
NULL);
#endif
return deploy_path;
}