@startuml
!theme spacelab
start
:init;
-> test of color;
if (color?) is (<color:red>red) then
  :print red;
else 
  :print not red;
  note right: no color
endif
partition End {
  :end;
}
-> this is the end;
end
@enduml

# The top level settings are used as module
# and system configuration.

# A set of users which may be applied and/or used by various modules
# when a 'default' entry is found it will reference the 'default_user'
# from the distro configuration specified below
users:
   - default

user:
    name: root
    lock_passwd: False

# If this is set, 'root' will not be able to ssh in and they
# will get a message to login instead as the default $user
disable_root: false

# This will cause the set+update hostname module to not operate (if true)
preserve_hostname: false

manage_etc_hosts: localhost


apt:
    preserve_sources_list: true


datasource_list: [ AliYun ]

# Example datasource config
datasource:
    AliYun:
        support_xen: false
        timeout: 5
        max_wait: 300
#      metadata_urls: [ 'blah.com' ]

# The modules that run in the 'init' stage
cloud_init_modules:
 - migrator
 - source-address
 - pip-source
 - seed_random
 - bootcmd
 - write-files
 - [ growpart, once-per-instance ]
 - [ resizefs, once-per-instance ]
 - disk_setup
 - mounts
 - set_hostname
 - update_hostname
 - update_etc_hosts
 - ca-certs
 - rsyslog
 - users-groups
 - ssh

# The modules that run in the 'config' stage
cloud_config_modules:
# Emit the cloud config ready event
# this can be used by upstart jobs for 'start on cloud-config'.
 - emit_upstart
 - snap
 - snap_config  # DEPRECATED- Drop in version 18.2
 - ssh-import-id
 - locale
 - set-passwords
 - grub-dpkg
 - apt-pipelining
 - apt-configure
 - ubuntu-advantage
 - ntp
 - timezone
 - disable-ec2-metadata
 - runcmd
# - ntp-conf
# - chrony-conf
 - byobu

# The modules that run in the 'final' stage
cloud_final_modules:
 - snappy  # DEPRECATED- Drop in version 18.2
 - package-update-upgrade-install
 - fan
 - landscape
 - lxd
 - ubuntu-drivers
 - puppet
 - chef
 - mcollective
 - salt-minion
 - rightscale_userdata
 - scripts-vendor
 - scripts-per-once
 - scripts-per-boot
 - scripts-per-instance
 - scripts-user
 - ssh-authkey-fingerprints
 - keys-to-console
 - phone-home
 - final-message
 - power-state-change

# System and/or distro specific settings
# (not accessible to handlers/transforms)
system_info:
   # This will affect which distro class gets used
   distro: ubuntu
   paths:
      cloud_dir: /var/lib/cloud/
      templates_dir: /etc/cloud/templates/
      upstart_dir: /etc/init/
   ssh_svcname: ssh

openstack image list
+--------------------------------------+--------+--------+
| ID                                   | Name   | Status |
+--------------------------------------+--------+--------+
| b75daf8c-308c-4724-a2ac-8645580e0145 | apline | active |
| d6517dc4-7b19-4cb5-8f77-7051a064b69b | arch   | active |
| 28677059-0367-48ec-8cd6-fb4c532c49a1 | centos | active |
+--------------------------------------+--------+--------+

openstack image show d6517dc4-7b19-4cb5-8f77-7051a064b69b -f json
{
  "checksum": "ab3aeb65083b702089dfad4ce0ed8f55",
  "container_format": "bare",
  "created_at": "2025-05-10T10:10:51Z",
  "disk_format": "qcow2",
  "file": "/v2/images/d6517dc4-7b19-4cb5-8f77-7051a064b69b/file",
  "id": "d6517dc4-7b19-4cb5-8f77-7051a064b69b",
  "min_disk": 0,
  "min_ram": 0,
  "name": "arch",
  "owner": "8477b13786304b8db735a47f0b958ae1",
  "properties": {
    "os_hidden": false,
    "os_hash_algo": "sha512",
    "os_hash_value": "784478b376b65cad399a7e6ccc081cda316ddbc48c26e6d5956e3a5d2592122d739e0d09e76a702489717f8fcc6a3f3b0ca3fe4a7c9b5eeba397990589733baa",
    "hw_qemu_guest_agent": "yes"
  },
  "protected": false,
  "schema": "/v2/schemas/image",
  "size": 541063168,
  "status": "active",
  "tags": [],
  "updated_at": "2025-05-10T10:12:15Z",
  "virtual_size": 2147483648,
  "visibility": "shared"
}

openstack image set --property hw_qemu_guest_agent=yes 28677059-0367-48ec-8cd6-fb4c532c49a1

sudo apt-get install u-boot-qemu opensbi qemu-system qemu guestfs-tools
wget https://dl-cdn.alpinelinux.org/alpine/v3.21/releases/cloud/generic_alpine-3.21.2-x86_64-bios-cloudinit-r0.qcow2
mv generic_alpine-3.21.2-x86_64-bios-cloudinit-r0.qcow2 alpine.qcow2
qemu-img resize ./alpine.qcow2 +10G
sudo virt-customize -a alpine.qcow2 --root-password password:123456

# 由于虚拟机内存实在太小，只能分配给qemu实例256M内存
qemu-system-x86_64 \
  --nographic \
  -m 256M \
  -smp 1 \
  -net nic -net user,hostfwd=tcp::9090-:22 \
  -drive file=alpine.qcow2,format=qcow2 

# 增加用户
useradd -m peter

# ubuntu云主机镜像需要执行下列操作实际扩容
growpart /dev/sda 1
resize2fs /dev/sda1

docker run --name=cowrie \
	--user=cowrie \
	--env COWRIE_TELNET_ENABLES=no \
	--env COWRIE_SSH_LISTEN_ENDPOINTS=tcp:8822:interface=0.0.0.0 \
	--env COWRIE_HONEYPOT_BACKEND=proxy \
	--env COWRIE_PROXY_BACKEND=simple \
	--env COWRIE_PROXY_BACKEND_SSH_HOST=103.79.76.198 \
	--env COWRIE_PROXY_BACKEND_SSH_PORT=9090 \
	--env COWRIE_PROXY_BACKEND_USER=peter \
	--env COWRIE_PROXY_BACKEND_PASS=topsec \
	--volume /cowrie/cowrie-git/etc \
	--volume /cowrie/cowrie-git/var \
	--cap-drop=ALL \
	--workdir=/cowrie/cowrie-git \
	-p 8822:8822 \
	--detach=true \
	cowrie/cowrie:114c918e 

sudo apt install snmp snmpd snmptrapd snmp-mibs-downloader 
sudo download-mibs   // 下载mibs数据库

gcc -M -MF main.d main.c

main.c文件内容:
#include <stdio.h>
int main(int argc，char** argv) {
    printf("hello，world\r\n");
    return 0;
}

main.d文件内容:
main.o: main.c /usr/include/stdc-predef.h /usr/include/stdio.h \
 /usr/include/x86_64-linux-gnu/bits/libc-header-start.h \
 /usr/include/features.h /usr/include/x86_64-linux-gnu/sys/cdefs.h \
 /usr/include/x86_64-linux-gnu/bits/wordsize.h \
 /usr/include/x86_64-linux-gnu/bits/long-double.h \
 /usr/include/x86_64-linux-gnu/gnu/stubs.h \
 /usr/include/x86_64-linux-gnu/gnu/stubs-64.h \
 /usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h \
 /usr/lib/gcc/x86_64-linux-gnu/9/include/stdarg.h \
 /usr/include/x86_64-linux-gnu/bits/types.h \
 /usr/include/x86_64-linux-gnu/bits/timesize.h \
 /usr/include/x86_64-linux-gnu/bits/typesizes.h \
 /usr/include/x86_64-linux-gnu/bits/time64.h \
 /usr/include/x86_64-linux-gnu/bits/types/__fpos_t.h \
 /usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h \
 /usr/include/x86_64-linux-gnu/bits/types/__fpos64_t.h \
 /usr/include/x86_64-linux-gnu/bits/types/__FILE.h \
 /usr/include/x86_64-linux-gnu/bits/types/FILE.h \
 /usr/include/x86_64-linux-gnu/bits/types/struct_FILE.h \
 /usr/include/x86_64-linux-gnu/bits/stdio_lim.h \
 /usr/include/x86_64-linux-gnu/bits/sys_errlist.h

gcc -c -MM -MG  main.c -MP -MF main.d

main.c文件内容:
#include <stdio.h>
#include "defs.h"      // defs.h文件不存在
int main(int argc，char** argv) {
    printf("hello，world\r\n");
    return 0;
}

main.d文件内容:
main.o: main.c defs.h
defs.h:


gcc -MF main.d -MG -MM -MP -MT main.d -MT main.o main.c
main.d文件内容:
main.d main.o: main.c defs.h
defs.h:

git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
export PATH=/path/to/depot_tools:$PATH
fetch breakpad && cd src
./configure && make && make check && make install

#include "client/linux/handler/exception_handler.h"
#include "common/linux/http_upload.h"

using google_breakpad::ExceptionHandler;
using google_breakpad::HTTPUpload;
using google_breakpad::MinidumpDescriptor;

static bool upload_minidump(const MinidumpDescriptor& descriptor) {
    std::map<string, string> parameters;
    std::map<string, string> files = {{"upload_file_minidump", descriptor.path()}};
    std::string url = "http://192.168.5.170:1127/post";

    parameters["prod"] = "test";
    parameters["ver"] = "0.1.3";

    std::string response, error;
    bool success = HTTPUpload::SendRequest(url, parameters, files, "", "", "", &response, NULL, &error);
    return success;
}

static bool dump_callback(const MinidumpDescriptor& descriptor, void* context, bool succeeded) {
    printf("Dump path: %s\n", descriptor.path());
    if (succeeded) upload_minidump(descriptor);
    return succeeded;
}

void crash() {
  volatile int *a = (int *)(NULL);
  *a = 1;
}

int main(int argc, char *argv[]) {
  MinidumpDescriptor descriptor("/tmp/test");
  ExceptionHandler eh(descriptor, NULL, dump_callback, NULL, true, -1);
  crash();
  return 0;
}