add proxy/bastion for connection

Makefile

@@ -1,4 +1,4 @@
-VERSION ?= 0.0.6
+VERSION ?= 0.0.7
 CONTAINER_MANAGER ?= podman
 IMG ?= quay.io/rhqp/deliverest:v${VERSION}
 

lib/common/remote.sh

@@ -18,7 +18,11 @@ remote_required () {
     [[ -z "${TARGET_HOST_KEY_PATH+x}" && -z "${TARGET_HOST_PASSWORD+x}" ]] \
         && echo "TARGET_HOST_KEY_PATH or TARGET_HOST_PASSWORD required" \
         && validate=0
-
+
+    if [[ -n "${BASTION_HOST}" && -n "${BASTION_HOST_USERNAME}" ]]
+        $(ssh_config_file)
+    fi
+
     return $validate
 }
 
@@ -63,7 +67,7 @@ check_connection() {
 # Define remote connection
 uri () {
     local remote="${TARGET_HOST_USERNAME}@${TARGET_HOST}"
-    if [[ ! -z "${TARGET_HOST_DOMAIN+x}" ]]; then
+    if [[ -n "${TARGET_HOST_DOMAIN}" ]]; then
         remote="${TARGET_HOST_USERNAME}@${TARGET_HOST_DOMAIN}@${TARGET_HOST}"
     fi
     echo "${remote}" 
@@ -73,37 +77,67 @@ uri () {
 # $1 local path
 # $2 remote path
 scp_to_cmd () {
-    if [[ ! -z "${TARGET_HOST_KEY_PATH+x}" ]]; then
-        echo "scp -r $(connect_options) -i ${TARGET_HOST_KEY_PATH} ${1} $(uri):${2}"
+    cmd="scp -r $(connect_options) "
+    if [[ -n "${BASTION_HOST}" && -n "${BASTION_USERNAME}" ]]; then
+        echo "${cmd} -F ssh_config ${1} target_host:${2}"
+    elif [[ -n "${TARGET_HOST_KEY_PATH}" ]]; then
+        echo "${cmd} -i ${TARGET_HOST_KEY_PATH} ${1} $(uri):${2}"
     else
-        echo "sshpass -p ${TARGET_HOST_PASSWORD} scp -r $(connect_options) ${1} $(uri):${2}" 
+        echo "sshpass -p ${TARGET_HOST_PASSWORD} ${cmd} ${1} $(uri):${2}" 
     fi
 }
 
 # Generate SCP command
 # $1 remote path
 # $2 local path
 scp_from_cmd () {
-    if [[ ! -z "${TARGET_HOST_KEY_PATH+x}" ]]; then
-        echo "scp -r $(connect_options) -i ${TARGET_HOST_KEY_PATH} $(uri):${1} ${2}"
+    cmd="scp -r $(connect_options) "
+    if [[ -n "${BASTION_HOST}" && -n "${BASTION_USERNAME}" ]]; then
+        echo "${cmd} -F ssh_config target_host:${1} ${2} "
+    elif [[ -n "${TARGET_HOST_KEY_PATH}" ]]; then
+        echo "${cmd} -i ${TARGET_HOST_KEY_PATH} $(uri):${1} ${2}"
     else
-        echo "sshpass -p ${TARGET_HOST_PASSWORD} scp -r $(connect_options) $(uri):${1} ${2}" 
+        echo "sshpass -p ${TARGET_HOST_PASSWORD} ${cmd} $(uri):${1} ${2}" 
     fi
 }
 
 # Generate SSH command
 ssh_cmd () {
-    cmd=""
-    if [[ ! -z "${TARGET_HOST_KEY_PATH+x}" ]]; then
-        cmd="ssh $(connect_options) -i ${TARGET_HOST_KEY_PATH} $(uri) "
+    cmd="ssh $(connect_options) "
+    if [[ -n "${BASTION_HOST}" && -n "${BASTION_USERNAME}" ]]; then
+        cmd+="-F ssh_config target_host "
+    elif [[ -n "${TARGET_HOST_KEY_PATH}" ]]; then
+        cmd+="-i ${TARGET_HOST_KEY_PATH} $(uri) "
     else
-        cmd="sshpass -p ${TARGET_HOST_PASSWORD} ssh $(connect_options) $(uri) "
+        cmd="sshpass -p ${TARGET_HOST_PASSWORD} ${cmd} $(uri) "
     fi
+
     # On AWS MacOS ssh session is not recognized as expected
     if [[ ${OS} == 'darwin' ]]; then
         cmd+="sudo su - ${TARGET_HOST_USERNAME} -c \"PATH=\$PATH:/usr/local/bin && $@\""
     else 
-        cmd+="$@"
+        cmd+=" $@"
     fi
     echo "${cmd}"
 }
+# 
+ssh_config_file() {
+    cat <<EOF > ssh_config
+Host proxy_host
+    HostName ${BASTION_HOST}
+    User ${BASTION_HOST_USERNAME}
+    IdentityFile ${BASTION_HOST_KEY_PATH}
+
+Host target_host
+    HostName ${TARGET_HOST}
+    User ${TARGET_HOST_USERNAME}
+    IdentityFile ${TARGET_HOST_KEY_PATH}
+    ProxyJump proxy_host
+EOF
+    if [[ -z ${TARGET_HOST_KEY_PATH+x} ]]; then
+        sed -i"" -e '9d' ssh_config
+    fi
+    if [[ -z ${BASTION_HOST_KEY_PATH+x} ]]; then
+        sed -i"" -e '4d' ssh_config
+    fi
+}