feat: refactor ssh-config to enable environment variable substition
parent
d9fa3b6c74
commit
e205bf3c50
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/archive/
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@ -1,2 +0,0 @@
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# set this if you have all networks common backup server api
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# export BACKUP_SERVER=https://backup.xxxx.net
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@ -0,0 +1,8 @@
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publicip () {
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dig +short myip.opendns.com @resolver1.opendns.com
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}
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getip () {
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dig +short $1 | tail -1
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}
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@ -2,25 +2,50 @@
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# this will superceed the ssh binary in order to source all the config files
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module_load file # loads find and build_file
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[[ ! $SSH_CONFIG ]] && export SSH_CONFIG="$BASH_SHELL_ANY_NETWORK/ssh/_config"
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function ssh_config() {
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local CDIRS
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local CDIR
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local DIRS
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local DIR
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local PDIRS
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local RESET
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local FILE
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declare OPTION
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declare OPTARG
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declare OPTIND
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while getopts 'd:' OPTION; do
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while getopts 'd:glrf:' OPTION; do
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# echo $OPTION $OPTARG
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case "$OPTION" in
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d)
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PDIRS=$OPTARG
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DIRS=$($OPTARG)
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PDIRS=true
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# echo option d: $DIRS
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;;
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f)
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# todo if file is relative add $HOME/ssh
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FILE=$OPTARG
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;&
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r)
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RESET=true
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rm -f $SSH_CONFIG > /dev/null
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unset SSH_CONFIG
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;;
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g)
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shift 1
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ssh_config_get $@
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return $?
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;;
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l)
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shift 1
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if [[ $1 ]]; then
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cat $SSH_CONFIG | grep -F "$1"
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else
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cat $SSH_CONFIG
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fi
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echo -e "\n"
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return 1
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;;
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*)
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echo unknown option $OPTION
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;;
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@ -29,7 +54,24 @@ function ssh_config() {
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shift $((OPTIND - 1))
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[[ $PDIRS ]] && DIRS=($PDIRS) || DIRS=(${BASH_SHELL_DIRS} "$HOME/$BASH_SHELL_USER")
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# if more arguments passsed then just get the entry otherwise build the file
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[[ $1 ]] && ssh_config_get $@ && return $?
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if [[ (! $SSH_CONFIG || $RESET ) ]]; then
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[[ -f $SSH_CONFIG ]] && rm "$SSH_CONFIG"
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SSH_CONFIG=${FILE:-$SSH_CONFIG}
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export SSH_CONFIG=${SSH_CONFIG:-"$HOME/.ssh/_config"}
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fi
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if [[ ! -f $SSH_CONFIG ]]; then
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mkdir -p "$(dirname "$SSH_CONFIG")"
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touch $SSH_CONFIG
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chmod 600 $SSH_CONFIG
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fi
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[[ ! $DIRS ]] && DIRS=($BASH_SHELL_NETWORK_DIRS "$BASH_SHELL_HOST" "$HOME/$BASH_SHELL_USER" "$BASH_SHELL_DEV")
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# echo DIRS "${DIRS[@]}"
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# echo $SSH_CONFIG
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CDIRS=()
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@ -39,7 +81,7 @@ function ssh_config() {
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# echo $i of $cnt
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# looks in ssh/config subdirectory of each DIRS if not passed
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DIR="${DIRS[i]}$([[ ! $PDIRS ]] && echo /ssh/config)"
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# echo ----- trying $DIR
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# echo ----- $i, ${DIRS[i]} trying $DIR
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[ -d $DIR ] && CDIRS[j]=$DIR
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j+=1 || echo no directory $DIR
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done
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@ -56,23 +98,38 @@ function ssh_config() {
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module_load debug
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module_load file
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debug ssh config file at: $SSH_CONFIG
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mkdir -p "$(dirname "$SSH_CONFIG")"
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echo -e "$HEADER" >$SSH_CONFIG
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# build_file appends the given file to output file cleanly with checks
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# append any system config
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build_file "/etc/ssh/ssh_config" $SSH_CONFIG
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# echo existing dirs ${CDIRS[@]}
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# will append any .cfg file found in ssh/config subdir of any BASH_SHELL_DIRS, including home shell
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# echo "set -a" > /tmp/config.env
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> /tmp/config.env
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for CDIR in "${CDIRS[@]}"; do
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# FILES=$(find -n '*.cfg' -d 0 $CDIR)
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for f in $(_find -n '*.cfg' -p 'archive off' -d 0 $CDIR); do
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# echo "Processing $f";
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[[ $f ]] && build_file "$f" $SSH_CONFIG
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done
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[[ -f $CDIR/config.env ]] && build_file $CDIR/config.env /tmp/config.env
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done
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# append any tradtional home config
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[[ -f "$HOME/.ssh/config" ]] && build_file "$HOME/.ssh/config" $SSH_CONFIG
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[[ -f "$HOME/.ssh/config" ]] && build_file -l "$HOME/.ssh/config" $SSH_CONFIG
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[[ -f "$HOME/.ssh/config.env" ]] && build_file "$HOME/.ssh/config.env" "/tmp/config.env"
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# now replace any variables in file
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# echo -e "\nset +a" >> /tmp/config.env
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# cat /tmp/config.env
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# return
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# (. /tmp/config.env; envsubst < $SSH_CONFIG) > /tmp/cfg
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# if [[ $(ssh_config_get x 1> /dev/null) ]]; then
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# echo error
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# awk 'NR==193' /tmp/cfg
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# fi
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}
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@ -90,6 +147,7 @@ ssh_config_get () {
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ssh="$(which ssh) $cfg -G"
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# echo ssh cmd: "$ssh"
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# echo $@
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local OPTION; local OPTARG; local OPTIND
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while getopts 'uhpai' OPTION; do
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@ -120,7 +178,7 @@ ssh_config_get () {
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[[ ! $1 ]] && { echo must pass a config host; return 1; }
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[[ ! $(cat "$SSH_CONFIG" | grep "[Hh]ost $1") ]] && return 2
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[[ ! $(cat "$SSH_CONFIG" | grep "[Hh]ost" | grep $1) ]] && echo "no host alias $1" && return 2
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props=$($ssh $1)
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[[ $all ]] && { echo "$props"; return 0; }
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@ -135,3 +193,19 @@ ssh_config_get () {
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}
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ssh_config_env () {
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SSH_CONFIG_ENV={$SSH_CONFIG_ENV:-$HOME/.ssh/config.env}
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SSH_CONFIG_TEMP={$SSH_CONFIG_TEMP:-$HOME/.ssh/.config}
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[[ ! -f "$SSH_CONFIG" ]] && ssh_config "$SSH_CONFIG"
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if [[ -f $SSH_CONFIG ]]; then
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env=[[ -f $SSH_CONFIG_ENV ]] && echo $SSH_CONFIG_ENV || echo ""
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env_merge_file $SSH_CONFIG $SSH_CONFIG_ENV > $SSH_CONFIG_TEMP
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cfg="-F $SSH_CONFIG_TEMP"
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cat $SSH_CONFIG_TEMP | grep -a6 newbox
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fi
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return
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}
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@ -17,13 +17,14 @@
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# > String::split ret "$(ssh -p f filename -m -r test -p 32)"
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# > host=${ret[0]}; opts=${ret[1]};sshpass=${ret[2]}
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# module_load file
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module_load net-utils
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module_load ssh-config
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ssh() {
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local pw;local cfg;local opts;local mp; local sshpass; local dr
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local host; local user; local script; local ret ; local key
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local pw;local cfg;local opts;local mp; local sshpass; local dr; local sshcmd
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local host; local user; local script; local ret ; local key; local efile; local tfile
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if [[ $SSH_CONFIG ]]; then
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[[ ! -f "$SSH_CONFIG" ]] && ssh_config "$SSH_CONFIG"
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@ -131,8 +132,8 @@ if [[ $ret ]]; then
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# run remote commands right here
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sshcmd="$sshpass $(which ssh) $opts $host"
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# echo extra args: "$@"
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# echo running command: $ "$sshcmd"
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[[ ! $dr ]] && $sshcmd "$@" || echo $sshcmd "$@"
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# echo running command: "$sshcmd"
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[[ ! $dr ]] && $sshcmd "$@" || echo SSH Command Failed: $sshcmd "$@"
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fi
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} # end ssh
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@ -1,92 +0,0 @@
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#!/bin/bash
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# depends on sshfs fuse for ssh
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module_load filesystem # mounted
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module_load net-utils # host_reachable
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module_load ssh
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function smount() {
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local HOST
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local PORT
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local CONFIG=$SSH_CONFIG
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local PORT=22
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declare SSHOPTS
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declare OPTION
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declare OPTARG
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declare OPTIND
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declare MNTUSER
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while getopts 'u:np:o:F:' OPTION; do
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# echo $OPTION $OPTARG
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case "$OPTION" in
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p)
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PORT=$OPTARG
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# echo option d: $DIRS
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;;
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u)
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MNTUSER=$OPTARG
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;;
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n)
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MNTUSER=_NONE_
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;;
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o)
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echo "adding sshfs option: $OPTARG"
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SSHOPTS="$SSHOPTS -o $OPTARG"
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;;
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F)
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echo "using SSH Config file at: $OPTARG"
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CONFIG=$OPTARG
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;;
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*)
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echo unknown option $OPTION
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;;
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esac
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done
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shift $((OPTIND - 1))
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# first item is nowsource, second is local mount point, third is possbile local user
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HOST=$(sed 's/.*@\(.*\):.*/\1/' <<<"$1")
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[[ ! $(host_reachable $HOST $PORT) ]] && echo host $HOST not reachable, aborting mount && return 1
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if [[ $(mounted $2) ]]; then
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echo "aborting mount: $1 already mounted at $2"
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else
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mkdir -p $2
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# can add any options after mount point directory like -o default_permissions
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config=$([[ -f $CONFIG ]] && echo "-F $CONFIG")
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if [[ ! $MNTUSER == "_NONE_" ]]; then
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MNTUSER=${MNTUSER:-$USER}
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id=$(id -u ${MNTUSER})
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if [[ $id ]]; then
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SSHOPTS="$SSHOPTS -o uid=$id -o allow_other"
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else
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echo no user ${MNTUSER} on this machine, aborting mount
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return 1
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fi
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else
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MNTUSER=""
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fi
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args="-p $PORT $SSHOPTS $config $1 $2"
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echo SSHFS $([[ $MNTUSER ]] && echo mounted as user ${MNTUSER}): $args
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sshfs $args
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fi
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}
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function usmount() {
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if [[ $(mounted $1) ]]; then
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echo "unmounting remote file system at $1"
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fusermount -u $1
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else
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echo "nothing mounted at $1, aborting unmount"
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fi
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}
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function mntBackup() {
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smount root@$1:/backup /backup/remote -p 22 -o allow_other
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}
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function umntBackup() {
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usmount /backup/remote
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}
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