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testcontroller3.C
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testcontroller3.C
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/*
** Copyright 2022 Double Precision, Inc.
** See COPYING for distribution information.
*/
#include "config.h"
#include "proc_container.H"
#include "proc_container_timer.H"
#include "unit_test.H"
#include "privrequest.H"
#include "proc_loader.H"
#include "sys/wait.h"
#include <unistd.h>
#include <sys/stat.h>
void checkfdleak()
{
pid_t p=fork();
if (p < 0)
throw "fork failed";
if (p == 0)
{
execl("./testcontroller2fdleak",
"./testcontroller2fdleak");
perror("./testcontroller2fdleak");
_exit(1);
}
int waitstatus=0;
if (wait(&waitstatus) != p ||
!WIFEXITED(waitstatus) || WEXITSTATUS(waitstatus) != 0)
throw "testcontroller2fdleak failed";
std::cout << "no leaks" << std::endl;
}
void respawn1_setup(const std::vector<std::string> &args)
{
auto a=std::make_shared<proc_new_containerObj>("respawn");
a->new_container->starting_command="start";
a->new_container->start_type=start_type_t::respawn;
a->new_container->respawn_attempts=2;
a->new_container->respawn_limit=60;
proc_containers_install({
a
}, container_install::update);
proc_container_start("respawn");
reexec_handler=[&]
{
std::string cmd;
if (args.size() > 2)
{
cmd=args[2] + " ";
}
cmd += args[0];
cmd += " ";
cmd += args[1] + "_reexec";
execlp("/bin/sh", "/bin/sh", "-c", cmd.c_str(), nullptr);
};
auto [socketa, socketb] = create_fake_request();
request_reexec(socketa);
proc_do_request(socketb);
proc_check_reexec();
throw "Expected to exec()";
}
void respawn1_reexec()
{
auto a=std::make_shared<proc_new_containerObj>("respawn");
a->new_container->starting_command="start";
a->new_container->start_type=start_type_t::respawn;
a->new_container->respawn_attempts=2;
a->new_container->respawn_limit=60;
proc_containers_install({
a
}, container_install::initial);
if (logged_state_changes != std::vector<std::string>{
"re-exec: respawn",
"respawn: container was started",
"respawn: reinstalling runner for pid 2",
"respawn: restored preserved state: started",
"respawn: restored after re-exec",
"respawn: reactivated after re-exec",
})
{
throw "Unexpected results after reexec";
}
logged_state_changes.clear();
runner_finished(2, 0);
do_poll(0);
if (logged_state_changes != std::vector<std::string>{
"respawn: sending SIGTERM"
})
throw "Did not register termination of respawned container";
logged_state_changes.clear();
populated(a->new_container, false);
do_poll(0);
if (logged_state_changes != std::vector<std::string>{
"respawn: cgroup removed",
"respawn: restarting",
"respawn: cgroup created",
})
throw "Unexpected state changes after restart.";
}
void respawn3_setup(const std::vector<std::string> &args)
{
auto a=std::make_shared<proc_new_containerObj>("respawn3");
a->new_container->starting_command="start";
a->new_container->start_type=start_type_t::respawn;
a->new_container->respawn_attempts=2;
a->new_container->respawn_limit=60;
proc_containers_install({
a
}, container_install::update);
proc_container_start("respawn3");
runner_finished(2, 0);
logged_state_changes.clear();
{
auto [socketa, socketb] = create_fake_request();
request_reexec(socketa);
proc_do_request(socketb);
proc_check_reexec();
}
if (logged_state_changes != std::vector<std::string>{
"reexec delayed by a respawning container: respawn3"
})
throw "unexpected state change instead of a delayed reexec";
reexec_handler=[&]
{
std::string cmd;
if (args.size() > 2)
{
cmd=args[2] + " ";
}
cmd += args[0];
cmd += " ";
cmd += args[1] + "_reexec";
execlp("/bin/sh", "/bin/sh", "-c", cmd.c_str(), nullptr);
};
do_poll(0);
logged_state_changes.clear();
populated(a->new_container, false);
do_poll(0);
proc_check_reexec();
throw "Expected to exec()";
}
void respawn3_reexec()
{
auto a=std::make_shared<proc_new_containerObj>("respawn3");
a->new_container->starting_command="start";
a->new_container->start_type=start_type_t::respawn;
a->new_container->respawn_attempts=2;
a->new_container->respawn_limit=60;
proc_containers_install({
a
}, container_install::initial);
if (logged_state_changes != std::vector<std::string>{
"re-exec: respawn3",
"respawn3: container was started",
"respawn3: reinstalling runner for pid 3",
"respawn3: restored preserved state: started",
"respawn3: restored after re-exec",
"respawn3: reactivated after re-exec",
})
{
throw "Unexpected results after reexec";
}
logged_state_changes.clear();
runner_finished(3, 0);
if (logged_state_changes != std::vector<std::string>{
"respawn3: sending SIGTERM"
})
throw "unexpected state changes respawning after reexec";
do_poll(0);
logged_state_changes.clear();
populated(a->new_container, false);
do_poll(0);
if (logged_state_changes != std::vector<std::string>{
"respawn3: cgroup removed",
"respawn3: restarting",
"respawn3: cgroup created"
})
throw "unexpected state changes instead of successful respawn";
logged_state_changes.clear();
proc_container_stop("respawn3");
if (logged_state_changes != std::vector<std::string>{
"respawn3: " + STATE_STOP_PENDING::label.label_str(),
"respawn3: " + STATE_REMOVING::label.label_str(),
"respawn3: sending SIGTERM",
})
throw "unexpected state changes beginning stop after reexec";
do_poll(0);
logged_state_changes.clear();
populated(a->new_container, false);
do_poll(0);
if (logged_state_changes != std::vector<std::string>{
"respawn3: cgroup removed",
"respawn3: " + STATE_STOPPED::label.label_str(),
})
throw "unexpected state changes stopping after reexec";
}
void noreexec1()
{
auto a=std::make_shared<proc_new_containerObj>("noreexec1");
a->new_container->starting_command="start";
proc_containers_install({
a
}, container_install::initial);
proc_container_start("noreexec1");
{
auto [socketa, socketb] = create_fake_request();
request_reexec(socketa);
proc_do_request(socketb);
}
do_poll(0);
logged_state_changes.clear();
proc_check_reexec();
if (logged_state_changes != std::vector<std::string>{
"reexec delayed by a starting container: noreexec1"
})
throw "unexpected state changes instead of delayed reexec";
}
void noreexec2()
{
auto a=std::make_shared<proc_new_containerObj>("noreexec2");
a->new_container->stopping_command="start";
proc_containers_install({
a
}, container_install::initial);
proc_container_start("noreexec2");
proc_container_stop("noreexec2");
logged_state_changes.clear();
{
auto [socketa, socketb] = create_fake_request();
request_reexec(socketa);
proc_do_request(socketb);
}
do_poll(0);
logged_state_changes.clear();
proc_check_reexec();
if (logged_state_changes != std::vector<std::string>{
"reexec delayed by a stopping container: noreexec2"
})
throw "unexpected state changes instead of delayed reexec";
}
void noreexec3()
{
auto a=std::make_shared<proc_new_containerObj>("noreexec3");
a->new_container->restarting_command="restart";
proc_containers_install({
a
}, container_install::initial);
proc_container_start("noreexec3");
proc_container_restart("noreexec3",
[](int)
{
});
logged_state_changes.clear();
{
auto [socketa, socketb] = create_fake_request();
request_reexec(socketa);
proc_do_request(socketb);
}
do_poll(0);
logged_state_changes.clear();
proc_check_reexec();
if (logged_state_changes != std::vector<std::string>{
"reexec delayed by a reloading or a restarting"
" container: noreexec3"
})
throw "unexpected state changes instead of delayed reexec";
}
int main(int argc, char **argv)
{
alarm(60);
std::string test;
std::vector<std::string> args{argv, argv+argc};
if (args.size() <= 1)
{
std::cerr << "Expected a parameter" << std::endl;
exit(1);
}
try {
if (args[1] == "respawn1" || args[1] == "respawn2")
{
test_reset();
test="respawn1_setup";
next_pid=2;
respawn1_setup(args);
return 0;
}
if (args[1] == "respawn1_reexec" ||
args[1] == "respawn2_reexec")
{
test="respawn1_setup";
next_pid=10;
respawn1_reexec();
test_reset();
if (args[1] == "respawn2_reexec")
checkfdleak();
return 0;
}
if (args[1] == "respawn3" || args[1] == "respawn4")
{
test_reset();
test="respawn3_setup";
next_pid=2;
respawn3_setup(args);
return 0;
}
if (args[1] == "respawn3_reexec" ||
args[1] == "respawn4_reexec")
{
test="respawn1_setup";
next_pid=10;
respawn3_reexec();
test_reset();
if (args[1] == "respawn4_reexec")
checkfdleak();
return 0;
}
if (args[1] == "testnoreexec")
{
test_reset();
test="noreexec1";
noreexec1();
test_reset();
test="noreexec2";
noreexec2();
test_reset();
test="noreexec3";
noreexec3();
test_finished();
return 0;
}
throw "unknown invocation";
} catch (const char *e)
{
std::cout << test << ": " << e << "\n";
exit(1);
} catch (const std::string &e)
{
std::cout << test << ": " << e << "\n";
exit(1);
}
return 0;
}