参考链接

• https://chainx.org
• https://github.com/chainx-org/ChainX
• https://pkg-config.freedesktop.org/releases
• https://cmake.org/files/

环境

• 服务器系统
  CentOS
• Rust & WebAssembly
  安装命令

curl https://sh.rustup.rs -sSf | sh
安装完成后，相应的执行命令路径亦写到安装用户的系统配置文件中，要生效直接执行命令：
source ~/.bash_profile

$ rustup update nightly
$ rustup target add wasm32-unknown-unknown --toolchain nightly
$ rustup update stable
$ cargo install --git https://github.com/alexcrichton/wasm-gc

验证

rustc --version
输出：
rustc 1.30.1 (1433507eb 2018-11-07)

cmake & pkg-config & openssl-devel

cmake
$ wget https://cmake.org/files/v3.13/cmake-3.13.1.tar.gz
$ tar zxvf cmake-3.13.1.tar.gz
$ cd cmake-3.13.1
$ ./bootstrap
$ gmake
$ gmake install

pkg-config
$ wget https://pkg-config.freedesktop.org/releases/pkg-config-0.29.2.tar.gz
$ tar zxvf pkg-config-0.29.2.tar.gz
$ cd pkg-config-0.29.2
$ ./configure --with-internal-glib
$ make & make install 

openssl-devel
$ yum install openssl-devel 

ChainX源码安装

• 下载源码&编译

##下载
$ git clone https://github.com/chainx-org/ChainX ~/ChainX
$ cd ~/ChainX
## 编译
$ cargo +nightly build --release
## 代码路径 
target/release/chainx

编译完成后目录结构

• 运行

RUST_LOG=info ./chainx --chainspec=dev --telemetry --name=YOUR_NAME --bootnodes=/ip4/47.93.16.189/tcp/20222/p2p/QmRdBJk8eVPjkHcxZvRAUZdWtTq96mWivJFc7tpJ8fUEGU --db-path=/tmp/chainx
 name：节点名称
db-path：本地存储路径

通过官方web钱包创建个人账号：
http://wallet.chainx.org
保存seed及address 

启动命令添加--key=<seed> validator ：
RUST_LOG=info ./chainx --chainspec=dev --telemetry --name=YOUR_NAME --bootnodes=/ip4/47.93.16.189/tcp/20222/p2p/QmRdBJk8eVPjkHcxZvRAUZdWtTq96mWivJFc7tpJ8fUEGU --db-path=/tmp/chainx --key=YOUR_SEED validator 

• 查看ChainX链信息
  访问链接https://telemetry.polkadot.io/#/ChainX
  即可看到当前链的实时状态
  
  ChainX链状态

• 异常信息

  Compiling openssl-sys v0.9.36
error: failed to run custom build command for `openssl-sys v0.9.36`
process didn't exit successfully: `/data/chen/rust/ChainX/target/release/build/openssl-sys-e59f5626f2a0d7bb/build-script-main` (exit code: 101)
--- stdout
cargo:rerun-if-env-changed=X86_64_UNKNOWN_LINUX_GNU_OPENSSL_LIB_DIR
cargo:rerun-if-env-changed=OPENSSL_LIB_DIR
cargo:rerun-if-env-changed=X86_64_UNKNOWN_LINUX_GNU_OPENSSL_INCLUDE_DIR
cargo:rerun-if-env-changed=OPENSSL_INCLUDE_DIR
cargo:rerun-if-env-changed=X86_64_UNKNOWN_LINUX_GNU_OPENSSL_DIR
cargo:rerun-if-env-changed=OPENSSL_DIR
run pkg_config fail: "`\"pkg-config\" \"--libs\" \"--cflags\" \"openssl\"` did not exit successfully: exit code: 1\n--- stderr\nPackage openssl was not found in the pkg-config search path.\nPerhaps you should add the directory containing `openssl.pc\'\nto the PKG_CONFIG_PATH environment variable\nNo package \'openssl\' found\n"

--- stderr
thread 'main' panicked at '

Could not find directory of OpenSSL installation, and this `-sys` crate cannot
proceed without this knowledge. If OpenSSL is installed and this crate had
trouble finding it,  you can set the `OPENSSL_DIR` environment variable for the
compilation process.

Make sure you also have the development packages of openssl installed.
For example, `libssl-dev` on Ubuntu or `openssl-devel` on Fedora.

If you're in a situation where you think the directory *should* be found
automatically, please open a bug at https://github.com/sfackler/rust-openssl
and include information about your system as well as this message.

   $HOST = x86_64-unknown-linux-gnu
   $TARGET = x86_64-unknown-linux-gnu
   openssl-sys = 0.9.36

', /root/.cargo/registry/src/github.com-1ecc6299db9ec823/openssl-sys-0.9.36/build/main.rs:265:9
note: Run with `RUST_BACKTRACE=1` for a backtrace.

error: failed to run custom build command for `openssl-sys v0.9.36`
process didn't exit successfully: `/data/chen/rust/ChainX/target/release/build/openssl-sys-e59f5626f2a0d7bb/build-script-main` (exit code: 101)
--- stdout
cargo:rerun-if-env-changed=X86_64_UNKNOWN_LINUX_GNU_OPENSSL_LIB_DIR
cargo:rerun-if-env-changed=OPENSSL_LIB_DIR
cargo:rerun-if-env-changed=X86_64_UNKNOWN_LINUX_GNU_OPENSSL_INCLUDE_DIR
cargo:rerun-if-env-changed=OPENSSL_INCLUDE_DIR
cargo:rerun-if-env-changed=X86_64_UNKNOWN_LINUX_GNU_OPENSSL_DIR
cargo:rerun-if-env-changed=OPENSSL_DIR

--- stderr
thread 'main' panicked at 'OpenSSL include directory does not exist: /data/chen/rust/libs/openssl/include', /root/.cargo/registry/src/github.com-1ecc6299db9ec823/openssl-sys-0.9.36/build/main.rs:65:9
note: Run with `RUST_BACKTRACE=1` for a backtrace.

解决方式：

配置OPENSSL_DIR
   编辑配置文件：vim ~/.bash_profile 
   添加如下配置：
      OPENSSL_DIR=/root/chainx/openssl
      export OPENSSL_DIR
   保存修改，并加载配置文件：source ~/.bash_profile

创建OPENSSL_DIR目录，并在该目录下软链对应的.so文件(lib文件)和 .h(include 文件)
查找openssl的so文件：
    查看openssl命令位置：which openssl
      结果：/usr/bin/openssl
    查看命令链接的so文件：ldd /usr/bin/openssl
      结果：libssl.so.10 => /lib64/libssl.so.10  （见图1，找到所需目录/lib64）
创建软链：  ln -s /lib64 /root/chainx/openssl/lib

查找openssl的include文件：find / -name "openssl"|grep include
    结果：/usr/local/ssl/include/openssl（见图2，找到所需目录）
 创建软链： ln -s /usr/local/ssl/include/openssl /root/chainx/openssl/include

图1

图2