chore: telnetd Dockerfile

src/test/resources/telnetd/Dockerfile

@@ -0,0 +1,44 @@
+FROM centos:7
+
+RUN sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
+RUN sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
+RUN yum update -y
+RUN yum install -y xinetd
+RUN yum install -y telnet-server
+RUN yum install -y epel-release
+RUN yum install -y htop
+
+RUN echo "pts/0" >> /etc/securetty
+RUN echo "pts/1" >> /etc/securetty
+RUN echo "pts/2" >> /etc/securetty
+
+
+RUN echo "root:root" | chpasswd
+
+RUN adduser user
+RUN echo "user:user" | chpasswd
+
+COPY <<EOF /etc/xinetd.d/telnet
+service telnet
+{
+    flags = REUSE
+    socket_type = stream
+    wait = no
+    user = root
+    server = /usr/sbin/in.telnetd
+    log_on_failure += USERID
+    disable = no
+}
+EOF
+
+COPY <<EOF /docker-entrypoint.sh
+#!/bin/bash
+xinetd -dontfork -stayalive
+EOF
+
+RUN chmod 777 docker-entrypoint.sh
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
+
+# docker build -t telnetd .
+# docker run -it --rm --name telnetd -p 2323:23 telnetd