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安装rust环境：

apt install git make gcc libssl-dev pkg-config curl
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
source $HOME/.cargo/env

编译安装bitwarden_rs：

git clone https://github.com/dani-garcia/bitwarden_rs/
cd bitwarden_rs/
cargo build --features sqlite --release
mkdir /usr/local/bitwarden
cp target/release/bitwarden_rs /usr/local/bitwarden/  

交叉编译arm64/aarch64版本bitwarden_rs：

#wget https://releases.linaro.org/components/toolchain/binaries/latest-7/aarch64-linux-gnu/gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu.tar.xz
#tar -Jxvf gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu.tar.xz 
#export PATH=$PATH:`pwd`/gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu/bin/
apt install gcc-aarch64-linux-gnu
git clone https://github.com/dani-garcia/bitwarden_rs/
cd bitwarden_rs/
mkdir .cargo
rustup target install aarch64-unknown-linux-gnu
echo '[target.aarch64-unknown-linux-gnu]' > .cargo/config
echo 'linker = "aarch64-linux-gnu-gcc"' >> .cargo/config
sed -i '/\[features\]/a\openssl-vendored = ["openssl/vendored"]' Cargo.toml 
cargo build --target="aarch64-unknown-linux-gnu" --release --features "sqlite" --features "openssl-vendored"

编译安装web-vault，内存需4G以上，不然可能会出错。已编译版本：https://github.com/dani-garcia/bw_web_builds/releases

curl -sL https://deb.nodesource.com/setup_10.x | bash -
apt install nodejs
git clone https://github.com/bitwarden/web.git web-vault
cd web-vault
git checkout v2.18.2
#2.18版本先执行再patch
npm run sub:init
wget https://raw.githubusercontent.com/dani-garcia/bw_web_builds/master/patches/v2.18.1.patch
git apply v2.18.1.patch
npm install
npm run dist
#新版本
npm run dist:oss:selfhost
cp -r build /usr/local/bitwarden/web-vault
export PATH=/usr/local/bitwarden/:$PATH

也可使用docker build：

apt install docker.io
git clone https://github.com/dani-garcia/bw_web_builds.git
cd bw_web_builds/
git checkout v2022.10.2
make docker-extract

如果遇到以下错误：
ERROR in node_modules/sweetalert/typings/sweetalert.d.ts(4,9): error TS2403: Subsequent variable declarations must have the same type. Variable 'swal' must be of type 'typeof import("/usr/local/src/web-vault/node_modules/sweetalert/typings/sweetalert")', but here has type 'SweetAlert'.
则：

sed -i 's/const swal/\/\/const swal/' node_modules/sweetalert/typings/sweetalert.d.ts

启动：

export WEB_VAULT_FOLDER=/usr/local/bitwarden/web-vault
export DATA_FOLDER=/usr/local/bitwarden/data
bitwarden_rs

systemd：

[Unit]
Description=Bitwarden Server (Rust Edition)
Documentation=https://github.com/dani-garcia/bitwarden_rs
After=network.target

[Service]
User=bitwarden
Group=bitwarden
EnvironmentFile=/etc/bitwarden/config.env
ExecStart=/usr/local/bin/bitwarden_rs
LimitNOFILE=1048576
LimitNPROC=64
PrivateTmp=true
PrivateDevices=true
ProtectHome=true
ProtectSystem=strict
WorkingDirectory=/etc/bitwarden/
ReadWriteDirectories=/etc/bitwarden/
ReadWriteDirectories=/run/log/bitwarden/
AmbientCapabilities=CAP_NET_BIND_SERVICE
Restart=always
RestartSec=5
StartLimitBurst=3
StartLimitInterval=60
StandardOutput=null
StandardError=null

[Install]
WantedBy=multi-user.target

添加运行用户：

useradd -r bitwarden  -s /usr/sbin/nologin

/etc/bitwarden/config.env文件：

WEB_VAULT_FOLDER="/usr/local/web-vault"
DATA_FOLDER="/etc/bitwarden/data"
ROCKET_ADDRESS="127.0.0.1"
ROCKET_PORT="8080"
SIGNUPS_ALLOWED="false"
INVITATIONS_ALLOWED="false"
DOMAIN="https://www.haiyun.me"
SHOW_PASSWORD_HINT="false"
LOG_FILE="/run/log/bitwarden/bitwarden.log"
EXTENDED_LOGGING="true"
#"trace", "debug", "info", "warn", "error" or "off".
LOG_LEVEL="info"

nginx配置：

server {
  listen       0.0.0.0:443 ssl http2;
  server_name www.haiyun.me;

  ssl_certificate /etc/acme/www.haiyun.me_ecc/fullchain.cer;
  ssl_certificate_key /etc/acme/www.haiyun.me_ecc/www.haiyun.me.key;
  ssl_protocols      TLSv1.2 TLSv1.3;
  #ssl_ciphers         HIGH:!aNULL:!MD5;
  ssl_ciphers TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_CCM_SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-ECDSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA;
  ssl_prefer_server_ciphers   off; 

  ssl_early_data on;
  ssl_session_timeout 1d;
  ssl_session_cache shared:MozSSL:10m;  # about 40000 sessions
  ssl_session_tickets off;

  ssl_stapling on;
  ssl_stapling_verify on;
  ssl_trusted_certificate /etc/acme/www.haiyun.me_ecc/ca.cer;

  root   /var/www/html;
  index  index.html index.htm;

  location / {
    proxy_redirect off;
    #proxy_pass http://127.0.0.1:8080;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
  }
  access_log /run/log/nginx/www.haiyun.me.log ssl;
  error_log  /run/log/nginx/www.haiyun.me_error.log;
}

https://github.com/dani-garcia/bitwarden_rs/wiki/Building-binary
https://github.com/t4t5/sweetalert/issues/890
https://www.reddit.com/r/Bitwarden/comments/dg78bi/building_selfhosted_bitwarden_via_bitwarden_rs/
https://www.ixsystems.com/community/threads/how-to-build-your-own-bitwarden_rs-jail.81389/