commit fe49bd173e1783ebd3e61b468d93f20339c09ef6
Author: DAI <daimingchen@mail.ustc.edu.cn>
Date:   Mon Oct 14 03:11:33 2024 +0000

    Updated SSH DevContainer of MS Ubuntu 20.04

diff --git a/dev-ubuntu-20.04-ssh/Dockerfile b/dev-ubuntu-20.04-ssh/Dockerfile
new file mode 100644
index 0000000..c256e4d
--- /dev/null
+++ b/dev-ubuntu-20.04-ssh/Dockerfile
@@ -0,0 +1,12 @@
+FROM mcr.microsoft.com/devcontainers/base:dev-ubuntu-20.04
+
+COPY entrypoint.sh /entrypoint.sh
+
+RUN apt-get update && apt-get install -y openssh-server && apt-get clean && chmod +x /entrypoint.sh
+
+
+# 当有命令传入时候执行命令，否则执行 tail -f /dev/null
+ENTRYPOINT ["/entrypoint.sh"]
+CMD []
+
+# $ docker build -t base-ssh-devcontainer:ubuntu-20.04-20241014 .
diff --git a/dev-ubuntu-20.04-ssh/entrypoint.sh b/dev-ubuntu-20.04-ssh/entrypoint.sh
new file mode 100644
index 0000000..b471e48
--- /dev/null
+++ b/dev-ubuntu-20.04-ssh/entrypoint.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+# 1. 重新生成 SSH 密钥对
+rm -f /etc/ssh/ssh_host_*
+ssh-keygen -A
+
+# 2. 启动 SSH 服务
+service ssh start
+
+# 3. 默认命令检查
+if [ "$#" -eq 0 ]; then
+    # 如果没有传入参数，则默认执行 tail -f /dev/null
+    exec tail -f /dev/null
+else
+    # 执行传入的命令
+    exec "$@"
+fi