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| author | Andrew Clayton <a.clayton@nginx.com> | 2022-10-24 17:35:04 +0100 |
|---|---|---|
| committer | Andrew Clayton <a.clayton@nginx.com> | 2022-12-10 14:00:20 +0000 |
| commit | 867a839f103bf7859b76eb98cfc28e7f0155dd1b (patch) | |
| tree | 0c1dc40c4e54211ced9b318d2ff51f624ec3f23d /src/nxt_isolation.c | |
| parent | 7d177faf3b8a483fd7ef958e884ec5625e058ca0 (diff) | |
| download | unit-867a839f103bf7859b76eb98cfc28e7f0155dd1b.tar.gz unit-867a839f103bf7859b76eb98cfc28e7f0155dd1b.tar.bz2 | |
Isolation: wired up per-application cgroup support internally.
This commit hooks into the cgroup infrastructure added in the previous
commit to create per-application cgroups.
It does this by adding each "prototype process" into its own cgroup,
then each child process inherits its parents cgroup.
If we fail to create a cgroup we simply fail the process. This behaviour
may get enhanced in the future.
This won't actually do anything yet. Subsequent commits will hook this
up to the build and config systems.
Reviewed-by: Alejandro Colomar <alx@nginx.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
Diffstat (limited to 'src/nxt_isolation.c')
| -rw-r--r-- | src/nxt_isolation.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/nxt_isolation.c b/src/nxt_isolation.c index 796da4c6..b6b13c59 100644 --- a/src/nxt_isolation.c +++ b/src/nxt_isolation.c @@ -6,6 +6,7 @@ #include <nxt_application.h> #include <nxt_process.h> #include <nxt_isolation.h> +#include <nxt_cgroup.h> #if (NXT_HAVE_MNTENT_H) #include <mntent.h> @@ -15,6 +16,11 @@ static nxt_int_t nxt_isolation_set(nxt_task_t *task, nxt_conf_value_t *isolation, nxt_process_t *process); +#if (NXT_HAVE_CGROUP) +static nxt_int_t nxt_isolation_set_cgroup(nxt_task_t *task, + nxt_conf_value_t *isolation, nxt_process_t *process); +#endif + #if (NXT_HAVE_CLONE) static nxt_int_t nxt_isolation_set_namespaces(nxt_task_t *task, nxt_conf_value_t *isolation, nxt_process_t *process); @@ -155,6 +161,14 @@ static nxt_int_t nxt_isolation_set(nxt_task_t *task, nxt_conf_value_t *isolation, nxt_process_t *process) { +#if (NXT_HAVE_CGROUP) + if (nxt_slow_path(nxt_isolation_set_cgroup(task, isolation, process) + != NXT_OK)) + { + return NXT_ERROR; + } +#endif + #if (NXT_HAVE_CLONE) if (nxt_slow_path(nxt_isolation_set_namespaces(task, isolation, process) != NXT_OK)) @@ -197,6 +211,42 @@ nxt_isolation_set(nxt_task_t *task, nxt_conf_value_t *isolation, } +#if (NXT_HAVE_CGROUP) + +static nxt_int_t +nxt_isolation_set_cgroup(nxt_task_t *task, nxt_conf_value_t *isolation, + nxt_process_t *process) +{ + nxt_str_t str; + nxt_conf_value_t *obj; + + static nxt_str_t cgname = nxt_string("cgroup"); + static nxt_str_t path = nxt_string("path"); + + obj = nxt_conf_get_object_member(isolation, &cgname, NULL); + if (obj == NULL) { + return NXT_OK; + } + + obj = nxt_conf_get_object_member(obj, &path, NULL); + if (obj == NULL) { + return NXT_ERROR; + } + + nxt_conf_get_string(obj, &str); + process->isolation.cgroup.path = nxt_mp_alloc(process->mem_pool, + str.length + 1); + nxt_memcpy(process->isolation.cgroup.path, str.start, str.length); + process->isolation.cgroup.path[str.length] = '\0'; + + process->isolation.cgroup_cleanup = nxt_cgroup_cleanup; + + return NXT_OK; +} + +#endif + + #if (NXT_HAVE_CLONE) static nxt_int_t |