acme.sh/deploy/ssh.sh

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#!/usr/bin/env sh
# Script to deploy certificates to remote server by SSH
# Note that SSH must be able to login to remote host without a password...
# SSH Keys must have been exchanged with the remote host. Validate and
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# test that you can login to USER@SERVER from the host running acme.sh before
# using this script.
#
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# The following variables exported from environment will be used.
# If not set then values previously saved in domain.conf file are used.
#
# Only a username is required. All others are optional.
#
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# The following examples are for QNAP NAS running QTS 4.2
# export DEPLOY_SSH_CMD="" # defaults to "ssh -T"
# export DEPLOY_SSH_USER="admin" # required
# export DEPLOY_SSH_SERVER="qnap" # defaults to domain name
# export DEPLOY_SSH_KEYFILE="/etc/stunnel/stunnel.pem"
# export DEPLOY_SSH_CERTFILE="/etc/stunnel/stunnel.pem"
# export DEPLOY_SSH_CAFILE="/etc/stunnel/uca.pem"
# export DEPLOY_SSH_FULLCHAIN=""
# export DEPLOY_SSH_REMOTE_CMD="/etc/init.d/stunnel.sh restart"
# export DEPLOY_SSH_BACKUP="" # yes or no, default to yes or previously saved value
# export DEPLOY_SSH_BACKUP_PATH=".acme_ssh_deploy" # path on remote system. Defaults to .acme_ssh_deploy
# export DEPLOY_SSH_MULTI_CALL="" # yes or no, default to no or previously saved value
# export DEPLOY_SSH_USE_SCP="" yes or no , default to no
# export DEPLOY_SSH_SCP_CMD="" defaults to "scp -T -q "
#
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######## Public functions #####################
#domain keyfile certfile cafile fullchain
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ssh_deploy() {
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_cdomain="$1"
_ckey="$2"
_ccert="$3"
_cca="$4"
_cfullchain="$5"
_deploy_ssh_servers=""
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if [ -f "$DOMAIN_CONF" ]; then
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# shellcheck disable=SC1090
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. "$DOMAIN_CONF"
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fi
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_debug _cdomain "$_cdomain"
_debug _ckey "$_ckey"
_debug _ccert "$_ccert"
_debug _cca "$_cca"
_debug _cfullchain "$_cfullchain"
# USER is required to login by SSH to remote host.
if [ -z "$DEPLOY_SSH_USER" ]; then
if [ -z "$Le_Deploy_ssh_user" ]; then
_err "DEPLOY_SSH_USER not defined."
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return 1
fi
else
Le_Deploy_ssh_user="$DEPLOY_SSH_USER"
_savedomainconf Le_Deploy_ssh_user "$Le_Deploy_ssh_user"
fi
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# SERVER is optional. If not provided then use _cdomain
if [ -n "$DEPLOY_SSH_SERVER" ]; then
Le_Deploy_ssh_server="$DEPLOY_SSH_SERVER"
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_savedomainconf Le_Deploy_ssh_server "$Le_Deploy_ssh_server"
elif [ -z "$Le_Deploy_ssh_server" ]; then
Le_Deploy_ssh_server="$_cdomain"
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fi
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# CMD is optional. If not provided then use ssh
if [ -n "$DEPLOY_SSH_CMD" ]; then
Le_Deploy_ssh_cmd="$DEPLOY_SSH_CMD"
_savedomainconf Le_Deploy_ssh_cmd "$Le_Deploy_ssh_cmd"
elif [ -z "$Le_Deploy_ssh_cmd" ]; then
Le_Deploy_ssh_cmd="ssh -T"
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fi
# USE_SCP is optional. If not provided then default to previously saved
# value (which may be undefined... equivalent to "no").
if [ "$DEPLOY_SSH_USE_SCP" = "yes" ]; then
Le_Deploy_ssh_use_scp="yes"
_savedomainconf Le_Deploy_ssh_use_scp "$Le_Deploy_ssh_use_scp"
elif [ "$DEPLOY_SSH_USE_SCP" = "no" ]; then
Le_Deploy_ssh_use_scp=""
_cleardomainconf Le_Deploy_ssh_use_scp
fi
# SCP_CMD is optional. If not provided then use scp
if [ -n "$DEPLOY_SSH_SCP_CMD" ]; then
Le_Deploy_ssh_scp_cmd="$DEPLOY_SSH_SCP_CMD"
_savedomainconf Le_Deploy_ssh_scp_cmd "$Le_Deploy_ssh_scp_cmd"
elif [ -z "$Le_Deploy_ssh_scp_cmd" ]; then
Le_Deploy_ssh_scp_cmd="scp -T"
fi
# BACKUP is optional. If not provided then default to previously saved value or yes.
if [ "$DEPLOY_SSH_BACKUP" = "no" ]; then
Le_Deploy_ssh_backup="no"
elif [ -z "$Le_Deploy_ssh_backup" ] || [ "$DEPLOY_SSH_BACKUP" = "yes" ]; then
Le_Deploy_ssh_backup="yes"
fi
_savedomainconf Le_Deploy_ssh_backup "$Le_Deploy_ssh_backup"
# BACKUP_PATH is optional. If not provided then default to previously saved value or .acme_ssh_deploy
if [ -n "$DEPLOY_SSH_BACKUP_PATH" ]; then
Le_Deploy_ssh_backup_path="$DEPLOY_SSH_BACKUP_PATH"
elif [ -z "$Le_Deploy_ssh_backup_path" ]; then
Le_Deploy_ssh_backup_path=".acme_ssh_deploy"
fi
_savedomainconf Le_Deploy_ssh_backup_path "$Le_Deploy_ssh_backup_path"
# MULTI_CALL is optional. If not provided then default to previously saved
# value (which may be undefined... equivalent to "no").
if [ "$DEPLOY_SSH_MULTI_CALL" = "yes" ]; then
Le_Deploy_ssh_multi_call="yes"
_savedomainconf Le_Deploy_ssh_multi_call "$Le_Deploy_ssh_multi_call"
elif [ "$DEPLOY_SSH_MULTI_CALL" = "no" ]; then
Le_Deploy_ssh_multi_call=""
_cleardomainconf Le_Deploy_ssh_multi_call
fi
# USE_SCP is optional. If not provided then default to previously saved
# value (which may be undefined... equivalent to "no").
if [ "$DEPLOY_SSH_USE_SCP" = "yes" ]; then
Le_Deploy_ssh_use_scp="yes"
_savedomainconf Le_Deploy_ssh_use_scp "$Le_Deploy_ssh_use_scp"
Le_Deploy_ssh_multi_call="yes"
_savedomainconf Le_Deploy_ssh_multi_call "$Le_Deploy_ssh_multi_call"
elif [ "$DEPLOY_SSH_USE_SCP" = "no" ]; then
Le_Deploy_ssh_use_scp=""
_cleardomainconf Le_Deploy_ssh_use_scp
fi
# SCP_CMD is optional. If not provided then use scp
if [ -n "$DEPLOY_SSH_SCP_CMD" ]; then
Le_Deploy_ssh_scp_cmd="$DEPLOY_SSH_SCP_CMD"
_savedomainconf Le_Deploy_ssh_scp_cmd "$Le_Deploy_ssh_scp_cmd"
elif [ -z "$Le_Deploy_ssh_scp_cmd" ]; then
Le_Deploy_ssh_scp_cmd="scp -T -q "
fi
_deploy_ssh_servers=$Le_Deploy_ssh_server
for Le_Deploy_ssh_server in $_deploy_ssh_servers; do
_ssh_deploy
done
}
_ssh_deploy() {
_err_code=0
_cmdstr=""
_backupprefix=""
_backupdir=""
_local_cert_file=""
_local_ca_file=""
_local_full_file=""
_info "Deploy certificates to remote server $Le_Deploy_ssh_user@$Le_Deploy_ssh_server"
if [ "$Le_Deploy_ssh_use_scp" = "yes" ]; then
_info "Using scp as alternate method for copying files. Multicall Mode is implicit"
Le_Deploy_ssh_multi_call="yes"
_savedomainconf Le_Deploy_ssh_multi_call "$Le_Deploy_ssh_multi_call"
fi
if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
_info "Using MULTI_CALL mode... Required commands sent in multiple calls to remote host"
else
_info "Required commands batched and sent in single call to remote host"
fi
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if [ "$Le_Deploy_ssh_backup" = "yes" ]; then
_backupprefix="$Le_Deploy_ssh_backup_path/$_cdomain-backup"
_backupdir="$_backupprefix-$(_utc_date | tr ' ' '-')"
# run cleanup on the backup directory, erase all older
# than 180 days (15552000 seconds).
_cmdstr="{ now=\"\$(date -u +%s)\"; for fn in $_backupprefix*; \
do if [ -d \"\$fn\" ] && [ \"\$(expr \$now - \$(date -ur \$fn +%s) )\" -ge \"15552000\" ]; \
then rm -rf \"\$fn\"; echo \"Backup \$fn deleted as older than 180 days\"; fi; done; }; $_cmdstr"
# Alternate version of above... _cmdstr="find $_backupprefix* -type d -mtime +180 2>/dev/null | xargs rm -rf; $_cmdstr"
# Create our backup directory for overwritten cert files.
_cmdstr="mkdir -p $_backupdir; $_cmdstr"
_info "Backup of old certificate files will be placed in remote directory $_backupdir"
_info "Backup directories erased after 180 days."
if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
if ! _ssh_remote_cmd "$_cmdstr"; then
return $_err_code
fi
_cmdstr=""
fi
fi
# KEYFILE is optional.
# If provided then private key will be copied to provided filename.
if [ -n "$DEPLOY_SSH_KEYFILE" ]; then
Le_Deploy_ssh_keyfile="$DEPLOY_SSH_KEYFILE"
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_savedomainconf Le_Deploy_ssh_keyfile "$Le_Deploy_ssh_keyfile"
fi
if [ -n "$Le_Deploy_ssh_keyfile" ]; then
if [ "$Le_Deploy_ssh_backup" = "yes" ]; then
# backup file we are about to overwrite.
_cmdstr="$_cmdstr cp $Le_Deploy_ssh_keyfile $_backupdir >/dev/null;"
if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
if ! _ssh_remote_cmd "$_cmdstr"; then
return $_err_code
fi
_cmdstr=""
fi
fi
# copy new key into file.
if [ "$Le_Deploy_ssh_use_scp" = "yes" ]; then
# scp the file
if ! _scp_remote_cmd "$_ckey" "$Le_Deploy_ssh_keyfile"; then
return $_err_code
fi
else
_cmdstr="$_cmdstr echo \"$(cat "$_ckey")\" > $Le_Deploy_ssh_keyfile;"
_info "will copy private key to remote file $Le_Deploy_ssh_keyfile"
if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
if ! _ssh_remote_cmd "$_cmdstr"; then
return $_err_code
fi
_cmdstr=""
fi
fi
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fi
# CERTFILE is optional.
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# If provided then certificate will be copied or appended to provided filename.
if [ -n "$DEPLOY_SSH_CERTFILE" ]; then
Le_Deploy_ssh_certfile="$DEPLOY_SSH_CERTFILE"
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_savedomainconf Le_Deploy_ssh_certfile "$Le_Deploy_ssh_certfile"
fi
if [ -n "$Le_Deploy_ssh_certfile" ]; then
_pipe=">"
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if [ "$Le_Deploy_ssh_certfile" = "$Le_Deploy_ssh_keyfile" ]; then
# if filename is same as previous file then append.
_pipe=">>"
_local_cert_file=$(_mktemp)
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cat "$_ckey" > "$_local_cert_file"
cat "$_ccert" >> "$_local_cert_file"
elif [ "$Le_Deploy_ssh_backup" = "yes" ]; then
# backup file we are about to overwrite.
_cmdstr="$_cmdstr cp $Le_Deploy_ssh_certfile $_backupdir >/dev/null;"
if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
if ! _ssh_remote_cmd "$_cmdstr"; then
return $_err_code
fi
_cmdstr=""
fi
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fi
if [ "$Le_Deploy_ssh_use_scp" = "yes" ]; then
if -n $_local_cert_file ; then
if ! _scp_remote_cmd "$_local_cert_file" "$Le_Deploy_ssh_certfile"; then
return $_err_code
fi
else
if ! _scp_remote_cmd "$_ccert" "$Le_Deploy_ssh_certfile"; then
return $_err_code
fi
fi
else
# copy new certificate into file.
_cmdstr="$_cmdstr echo \"$(cat "$_ccert")\" $_pipe $Le_Deploy_ssh_certfile;"
_info "will copy certificate to remote file $Le_Deploy_ssh_certfile"
if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
if ! _ssh_remote_cmd "$_cmdstr"; then
return $_err_code
fi
_cmdstr=""
fi
fi
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fi
# CAFILE is optional.
# If provided then CA intermediate certificate will be copied or appended to provided filename.
if [ -n "$DEPLOY_SSH_CAFILE" ]; then
Le_Deploy_ssh_cafile="$DEPLOY_SSH_CAFILE"
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_savedomainconf Le_Deploy_ssh_cafile "$Le_Deploy_ssh_cafile"
fi
if [ -n "$Le_Deploy_ssh_cafile" ]; then
_pipe=">"
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if [ "$Le_Deploy_ssh_cafile" = "$Le_Deploy_ssh_keyfile" ] ||
[ "$Le_Deploy_ssh_cafile" = "$Le_Deploy_ssh_certfile" ]; then
# if filename is same as previous file then append.
_pipe=">>"
_local_ca_file=$(_mktemp)
if [ "$Le_Deploy_ssh_cafile" = "$Le_Deploy_ssh_keyfile" ] ; then
cat $_ckey >> $_local_ca_file
fi
if [ "$Le_Deploy_ssh_cafile" = "$Le_Deploy_ssh_certfile" ]; then
cat $_ccert >> $_local_ca_file
fi
cat $_cca >> $_local_ca_file
elif [ "$Le_Deploy_ssh_backup" = "yes" ]; then
# backup file we are about to overwrite.
_cmdstr="$_cmdstr cp $Le_Deploy_ssh_cafile $_backupdir >/dev/null;"
if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
if ! _ssh_remote_cmd "$_cmdstr"; then
return $_err_code
fi
_cmdstr=""
fi
fi
if [ "$Le_Deploy_ssh_use_scp" = "yes" ]; then
if -n $_local_ca_file ; then
if ! _scp_remote_cmd "$_local_ca_file" "$Le_Deploy_ssh_cafile"; then
return $_err_code
fi
else
if ! _scp_remote_cmd "$_cca" "$Le_Deploy_ssh_cafile"; then
return $_err_code
fi
fi
else
# copy new certificate into file.
_cmdstr="$_cmdstr echo \"$(cat "$_cca")\" $_pipe $Le_Deploy_ssh_cafile;"
_info "will copy CA file to remote file $Le_Deploy_ssh_cafile"
if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
if ! _ssh_remote_cmd "$_cmdstr"; then
return $_err_code
fi
_cmdstr=""
fi
fi
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fi
# FULLCHAIN is optional.
# If provided then fullchain certificate will be copied or appended to provided filename.
if [ -n "$DEPLOY_SSH_FULLCHAIN" ]; then
Le_Deploy_ssh_fullchain="$DEPLOY_SSH_FULLCHAIN"
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_savedomainconf Le_Deploy_ssh_fullchain "$Le_Deploy_ssh_fullchain"
fi
if [ -n "$Le_Deploy_ssh_fullchain" ]; then
_pipe=">"
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if [ "$Le_Deploy_ssh_fullchain" = "$Le_Deploy_ssh_keyfile" ] ||
[ "$Le_Deploy_ssh_fullchain" = "$Le_Deploy_ssh_certfile" ] ||
[ "$Le_Deploy_ssh_fullchain" = "$Le_Deploy_ssh_cafile" ]; then
# if filename is same as previous file then append.
_pipe=">>"
_local_full_file=$(_mktemp)
if [ "$Le_Deploy_ssh_fullchain" = "$Le_Deploy_ssh_keyfile" ] ; then
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cat "$_ckey" >> "$_local_full_file"
fi
if [ "$Le_Deploy_ssh_fullchain" = "$Le_Deploy_ssh_certfile" ]; then
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cat "$_ccert" >> "$_local_full_file"
fi
if [ "$Le_Deploy_ssh_fullchain" = "$Le_Deploy_ssh_cafile" ]; then
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cat "$_cca" >> "$_local_full_file"
fi
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cat "$_cfullchain" >> "$_local_full_file"
elif [ "$Le_Deploy_ssh_backup" = "yes" ]; then
# backup file we are about to overwrite.
_cmdstr="$_cmdstr cp $Le_Deploy_ssh_fullchain $_backupdir >/dev/null;"
if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
if ! _ssh_remote_cmd "$_cmdstr"; then
return $_err_code
fi
_cmdstr=""
fi
fi
if [ "$Le_Deploy_ssh_use_scp" = "yes" ]; then
if -n $_local_full_file ; then
if ! _scp_remote_cmd "$_local_full_file" "$Le_Deploy_ssh_fullchain"; then
return $_err_code
fi
else
if ! _scp_remote_cmd "$_cfullchain" "$Le_Deploy_ssh_fullchain"; then
return $_err_code
fi
fi
else
# copy new certificate into file.
_cmdstr="$_cmdstr echo \"$(cat "$_cfullchain")\" $_pipe $Le_Deploy_ssh_fullchain;"
_info "will copy fullchain to remote file $Le_Deploy_ssh_fullchain"
if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
if ! _ssh_remote_cmd "$_cmdstr"; then
return $_err_code
fi
_cmdstr=""
fi
fi
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fi
# cleanup local files if any
if [ -n "$_local_cert_file" ]; then
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rm "$_local_cert_file" > /dev/null 1>&2
fi
if [ -n "$_local_ca_file" ]; then
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rm "$_local_ca_file" > /dev/null 1>&2
fi
if [ -n "$_local_full_file" ]; then
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rm "$_local_full_file" > /dev/null 1>&2
fi
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# REMOTE_CMD is optional.
# If provided then this command will be executed on remote host.
if [ -n "$DEPLOY_SSH_REMOTE_CMD" ]; then
Le_Deploy_ssh_remote_cmd="$DEPLOY_SSH_REMOTE_CMD"
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_savedomainconf Le_Deploy_ssh_remote_cmd "$Le_Deploy_ssh_remote_cmd"
fi
if [ -n "$Le_Deploy_ssh_remote_cmd" ]; then
_cmdstr="$_cmdstr $Le_Deploy_ssh_remote_cmd;"
_info "Will execute remote command $Le_Deploy_ssh_remote_cmd"
if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
if ! _ssh_remote_cmd "$_cmdstr"; then
return $_err_code
fi
_cmdstr=""
fi
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fi
# if commands not all sent in multiple calls then all commands sent in a single SSH call now...
if [ -n "$_cmdstr" ]; then
if ! _ssh_remote_cmd "$_cmdstr"; then
return $_err_code
fi
fi
# cleanup in case all is ok
return 0
}
#cmd
_ssh_remote_cmd() {
_cmd="$1"
_secure_debug "Remote commands to execute: $_cmd"
_info "Submitting sequence of commands to remote server by ssh"
# quotations in bash cmd below intended. Squash travis spellcheck error
# shellcheck disable=SC2029
$Le_Deploy_ssh_cmd "$Le_Deploy_ssh_user@$Le_Deploy_ssh_server" sh -c "'$_cmd'"
_err_code="$?"
if [ "$_err_code" != "0" ]; then
_err "Error code $_err_code returned from ssh"
fi
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return $_err_code
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}
# cmd scp
_scp_remote_cmd() {
_secure_debug "Remote scp source $1 and destination $2 using : $Le_Deploy_ssh_scp_cmd"
_info "Submitting secure copy command : $Le_Deploy_ssh_scp_cmd"
$Le_Deploy_ssh_scp_cmd "$1" "$Le_Deploy_ssh_user"@"$Le_Deploy_ssh_server":"$2"
_err_code="$?"
if [ "$_err_code" != "0" ]; then
_err "Error code $_err_code returned from scp"
fi
return $_err_code
}