centos .... keycloak ...ssh

RUN yum install -y initscripts && \
    yum install -y sudo.x86_64 && \
    yum install -y openssh-server.x86_64 && yum clean all && \
    
https://wiki.centos.org/HowTos/Network/SecuringSSH#head-2c570b3605b9f578c5b79301bfeb4a98bad9c9c4
https://linux.die.net/man/8/sshd
http://help.ubuntu.ru/wiki/ssh

centos enable only corporative repo

ls /etc/yum.repos.d/ #see all repos
yum-config-manager --disable CentOS-* #disable all repos starting from "Centos-"

yum-config-manager --nogpgcheck --add-repo url_to_my_repo
rpm --import url_to_gpg_to_that repo

centos openssl

yum -y update && \
 yum -y install make gcc perl pcre-devel zlib-devel && \
 curl https://www.openssl.org/source/openssl-1.1.1c.tar.gz --output openssl-1.1.1c.tar.gz && \
 tar xvf openssl-1.1.1c.tar.gz && \
 cd openssl-1.1.1c && \
 ./config --prefix=/usr --openssldir=/etc/ssl --libdir=lib no-shared zlib-dynamic && \
 make && \
 make install

remote docker. how to pass multilinefile file without volumes

- ssh ${MY_SSH} "echo \"$(cat ca.cert)\" > /home/user/me/ca.cert" 
- ssh ${MY_SSH} sudo docker run -d -p 8080:8080 -i -t --name ${NAME} ${ENV} -e MY_CERT="\"\$(cat  /home/user/me/ca.cert)\"" imagename
# sault is quotas