started ssh-client script

scripts/ssh-client.sh

@@ -0,0 +1,89 @@
+#!/usr/bin/env bash
+
+#
+# Env vars
+#
+
+SSH_CFG_PATH="$(readlink -f ~/.ssh)"
+SSH_USER_KEY="$SSH_CFG_PATH/id_ed25519"
+SSH_USER_PUBLIC_KEY="$SSH_USER_KEY.pub"
+SSH_USER_CERT="$SSH_USER_KEY-cert.pub"
+
+GREEN_CHECK="\e[32m✔\e[0m"
+RED_X="\e[31m✗\e[0m"
+YELLOW_BANG="\e[33m!\e[0m"
+MAGENTA_QUESTION="\e[35m?\e[0m"
+UP_ONE_LINE="\e[1A"
+
+#
+# Function Definitions
+#
+
+reset_line() {
+    echo -en "\r\e[K"
+}
+
+title_msg() {
+    local title="\e[1m${1:-Title}:\e[0m"
+    local prompt="${2:-Prompt for the user}"
+    # printf "%b %b" "$title" "$prompt"
+    echo -e "$title $prompt"
+}
+
+prompt_user() {
+    full_prompt_msg="$(title_msg "${1}" "${2}")"
+    echo -n -e "$MAGENTA_QUESTION $full_prompt_msg"
+    read -p " (y/n) " -n 1 -r
+}
+
+update_prompt() {
+    local icon="$1"
+    case $# in
+        1) msg="$full_prompt_msg $REPLY";;
+        2) msg="$2";;
+        3) msg="$(title_msg "${2}" "${3}")";;
+        *) msg="Too many arguments";;
+    esac
+
+    reset_line
+    echo -e "$icon $msg"
+}
+
+reupdate_prompt() {
+    echo -en "$UP_ONE_LINE"
+    update_prompt "$@"
+}
+
+
+renew_user_cert() {
+    step ssh certificate --sign \
+        --principal root --principal john \
+        --provisioner admin \
+        john@john-pc-ubuntu ~/.ssh/id_ed25519.pub
+}
+
+#
+# Run Process
+#
+
+if [[ ! -e "$SSH_USER_KEY" ]]; then
+    prompt_user "SSH User" "Private key missing: ${SSH_USER_KEY}. Create?"
+    if [[ $REPLY =~ ^[Yy]$ ]]; then
+        update_prompt $YELLOW_BANG "SSH User" "Creating private key"
+        sleep 0.5
+        reupdate_prompt $GREEN_CHECK "SSH User" "Created private key: ${SSH_USER_KEY}"
+    fi
+fi
+
+prompt_user "SSH User" "Cert missing. Renew cert?"
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+    # update_prompt $YELLOW_BANG "SSH User" "Renewing cert"
+    # sleep 0.25
+    renew_user_cert
+    if [[ $? -eq 0 ]]; then
+        update_prompt $GREEN_CHECK "SSH User" "Renewed cert"
+    else
+        update_prompt $RED_X "SSH User" "Failed to renew cert"
+    fi
+    echo
+fi