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autoacme

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m8in
2025-10-15 00:12:15 +02:00
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###########################################################################
# Dockerfile to build a Container to update TLS Certificates automatically.
# Based on latest Ubuntu LTS
###########################################################################
# See https://hub.docker.com/_/ubuntu
FROM ubuntu:latest
# Update repositories
RUN echo Version 20251005v5
RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get install -y apt-utils
#### BEGIN INSTALLATION ###################################################
RUN DEBIAN_FRONTEND=noninteractive apt-get install -y openssh-client curl cron
ADD acme.sh-3.1.1.tar.gz /tmp/acme.sh-setup/
COPY renewCerts.sh /renewCerts.sh
COPY start.sh /start.sh
# Run the command on container startup
CMD ["bash", "/start.sh"]

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Issuing SSL certificates
========================
There are two modes you can use the script `renewCerts.sh`.
1. dns
2. http
Dns mode
--------
This mode is meant to use inside a docker container defined by the `Dockerfile`.
To configure, build and run the Container there is a file `docker-compose.yml.template`.
You can copy this file to `docker-compose.yml` and set the needed environment variables there.
- __AUTOACME_CONTAINER_HOSTNAME__
is used to enable the use of the host name within the container.
For example, for meaningful commit messages.
- __AUTOACME_GIT_REPOSITORY_VIA_SSH__ (optional)
is used to specify a Git repository to which the keys and certificates are transferred.
Therefore, SSH keys are generated on first launch (`docker compose up -d`) and the repository is cloned to `~/acmeResults/`.
The public key must be granted __write access__ to the repository
(e.g. as repository's deploy key).
The key can be viewed via `docker compose logs`.
- __AUTOACME_PATH_IN_GIT_REPOSITORY__ (optional)
specifies a path inside the repository were the certiticates are saved.
(e.g. AUTOACME_PATH_IN_GIT_REPOSITORY="/foo/bar/" => /root/autoACME/foo/bar/your-domain.net/fullchain.crt)
- __AUTOACME_DNS_PROVIDER__
sets the provider modul of acme.sh used to communicate with your domain provider.
(For further information see: https://github.com/acmesh-official/acme.sh/wiki/dnsapi)
You may have to set additional environment variables depending on your provider...
### Manual docker commands
Instead of using `docker compose` you can build and run the container manually:
```
docker build -t cis/autoacme .
docker run --name autoacme -d cis/autoacme
```
This may be useful for investiagtion...
Http mode
---------
If you plan to use `renewCerts.sh` directly on your host computer this mode may fit your needs.
Here you need a `nginx` webserver. The domain have to point to it and following configuration is needed:
1. The content of folder `/var/www/letsencrypt/.well-known/acme-challenge/` has to be accessable via `http://your-domain.net/.well-known/acme-challenge/`
2. The certificates are stored to `/etc/nginx/ssl`. If this folder is a git repository then changes will be commited and pushed.
3. An entry into the crontab is needed to do automatic updates.

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services:
autoacme:
container_name: autoacme
image: cis/autoacme
build: .
restart: unless-stopped
volumes:
- /etc/timezone:/etc/timezone:ro
- /etc/localtime:/etc/localtime:ro
environment:
AUTOACME_CONTAINER_HOSTNAME: ${HOSTNAME:?"HINT - You may run 'export HOSTNAME' first."}
AUTOACME_GIT_REPOSITORY_VIA_SSH: 'ssh://git@git.your-domain.net/your-repo.git'
# Optionally you can set a path inside the git repository
AUTOACME_PATH_IN_GIT_REPOSITORY: 'hosts/all/etc/ssl/domains/'
# See: https://github.com/acmesh-official/acme.sh/wiki/dnsapi and search your provider like 'hetzner' e.g.
AUTOACME_DNS_PROVIDER: 'dns_hetzner'
HETZNER_Token: 'your-token'

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#!/bin/bash
# curl http://your.domain.net/.well-known/acme-challenge/test
# curl http://85.183.145.8/.well-known/acme-challenge/test
# /var/www/letsencrypt/.well-known/acme-challenge
function checkConfigViaHttp(){
local _DOMAIN _MODE _LOCAL_FILE _LOCAL_URL _PUBLIC_URL
_MODE="${1:?"checkConfigViaHttp(): Missing first parameter MODE"}"
_DOMAIN="${2:?"checkConfigViaHttp(): Missing second parameter DOMAIN"}"
_LOCAL_FILE="/var/www/letsencrypt/.well-known/acme-challenge/${_DOMAIN}"
_LOCAL_URL="http://localhost/.well-known/acme-challenge/${_DOMAIN}"
_PUBLIC_URL="http://${_DOMAIN}/.well-known/acme-challenge/${_DOMAIN}"
readonly _DOMAIN _MODE _LOCAL_FILE _LOCAL_URL _PUBLIC_URL
# Skip check if mode is not http
[ "${_MODE}" != "http" ] \
&& return 0
_CHECK="Available on $(hostname)@$(date)"
echo -n "Check domain '${_DOMAIN}'..." \
&& echo "${_CHECK}" > "/var/www/letsencrypt/.well-known/acme-challenge/${_DOMAIN}" \
&& curl -4s "${_PUBLIC_URL}" | grep -q "${_CHECK}" \
&& echo " Fertig" \
&& return 0
echo "The configuration of domain '${_DOMAIN}' is INCORRECT:" >> /dev/stderr
echo -n " ${_PUBLIC_URL} was not found." >> /dev/stderr
curl -4s "${_LOCAL_URL}" | grep -q "${_CHECK}" \
&& echo " (check DNS first)" \
|| echo " (check Webserver first)" \
return 1
}
function isActive(){
local _DOMAIN _MODE _RESULT_CERTS
_RESULT_CERTS="${RESULT_CERTS:?"isActive(): Missing global parameter RESULT_CERTS"}"
_MODE="${1:?"isActive(): Missing first parameter MODE"}"
_DOMAIN="${2:?"isActive(): Missing second parameter DOMAIN"}"
readonly _DOMAIN _MODE _RESULT_CERTS
# If mode is dns the domain is active always
[ "${_MODE}" = "dns" ] \
&& return 0
nginx -T 2> /dev/null | grep -q "${_RESULT_CERTS}${_DOMAIN}/fullchain.crt" \
&& return 0
echo "Domain '${_DOMAIN}' is inaktiv and therefore it will be skipped."
return 1
}
function isGitRepository(){
git -C "${RESULT_CERTS:?"isGitRepository(): Missing global parameter RESULT_CERTS"}" ls-tree main &> /dev/null \
&& return 0
return 1
}
function tryGitPush(){
local _DOMAIN _NOW _RESULT_CERTS
_RESULT_CERTS="${RESULT_CERTS:?"tryGitPush(): Missing global parameter RESULT_CERTS"}"
_DOMAIN="${1:?"tryGitPush(): Missing first parameter DOMAIN"}"
_NOW="$(date +%Y%m%d_%H%M)"
readonly _DOMAIN _NOW _RESULT_CERTS
! isGitRepository \
&& echo \
&& echo "Folder '${_RESULT_CERTS}' is not part of a git repository, therefore nothing will be pushed." \
&& return 1
pushd "${_RESULT_CERTS}" > /dev/null
git pull > /dev/null
git add * > /dev/null
git commit -m "${_NOW} - Certificate for '${_DOMAIN}' was updated." \
&& git push > /dev/null \
&& popd > /dev/null \
&& echo "SUCCESS: certificate for '${_DOMAIN}' pushed." \
&& return 0
popd > /dev/null
echo "FAILED: unable to push certificate for '${_DOMAIN}'."
return 0
}
function own(){
local _DOMAINS _MODE
_DOMAINS=("${RESULT_CERTS:?"own(): Missing global parameter RESULT_CERTS"}"/*)
_MODE="${1:?"own(): Missing first parameter MODE"}"
readonly _DOMAINS _MODE
! [ -d "${RESULT_CERTS}" ] \
&& echo "Trying to derive domain names from subfolders of '${RESULT_CERTS}', but it is not a folder!" \
&& return 1
local _domain
for _domain in "${_DOMAINS[@]}"; do
# just take names of folders
! [ -d "${_domain}" ] && continue
# cut pfad (like basename)
_domain="${_domain##*/}"
# folder default => skip
[ "${_domain}" == "default" ] && continue
case "${_MODE}" in
dns)
# dns and wildcard certifikate => take just them
echo "${_domain}" | grep -q -F "_." || continue
# cut front '_.'
_domain="${_domain#_.}"
;;
http)
# http and wildcard certifikate => skip
echo "${_domain}" | grep -q -F "_." && continue
# ssl on domain inaktiv => skip
isActive "{_MODE}" "${_domain}" || continue
;;
*)
echo "Unknown mode: ${_MODE}"
return 1
;;
esac
single "${_MODE}" "${_domain}" "${2}"
done
return 0
}
function isExpiringSoon(){
local _DOMAIN _DOMAIN_CERT _ENDDATE _MODE _NOW _REMAINING_DAYS _RESULT_CERTS
_RESULT_CERTS="${RESULT_CERTS:?"single(): Missing global parameter RESULT_CERTS"}"
_MODE="${1:?"isExpiringSoon(): Missing first parameter MODE"}"
_DOMAIN="${2:?"isExpiringSoon(): Missing second parameter DOMAIN"}"
[ "${_MODE}" = "dns" ] \
&& _DOMAIN_CERT="${_RESULT_CERTS}_.${_DOMAIN}/fullchain.crt"
[ "${_MODE}" = "http" ] \
&& _DOMAIN_CERT="${_RESULT_CERTS}${_DOMAIN}/fullchain.crt"
readonly _DOMAIN _DOMAIN_CERT _MODE _RESULT_CERTS
# forced => should be issued
[ "${3:-""}" = "--force" ] \
&& return 0
# no cert => should be issued
! [ -f "${_DOMAIN_CERT}" ] \
&& return 0
_ENDDATE="$(openssl x509 -enddate -noout -in ${_DOMAIN_CERT} | cut -d= -f2)"
_ENDDATE="$(date --date="${_ENDDATE}" --utc +%s)"
_NOW="$(date --date now +%s)"
_REMAINING_DAYS="$(( (_ENDDATE - _NOW) / 86400 ))"
readonly _ENDDATE _NOW _REMAINING_DAYS
echo "Certificate for domain '${_DOMAIN}' will expire in ${_REMAINING_DAYS} days."
# less than 30 days remaining => should be issued
[ "${_REMAINING_DAYS}" -le "30" ] \
&& return 0
return 1
}
function single(){
local _ACME_FILE _DOMAIN _DOMAIN_FOLDER _MODE _OPTIONS _RESULT_CERTS
_RESULT_CERTS="${RESULT_CERTS:?"single(): Missing global parameter RESULT_CERTS"}"
_ACME_FILE="${ACME_FILE:?"single(): Missing global parameter ACME_FILE"}"
_MODE="${1:?"single(): Missing first parameter MODE"}"
_DOMAIN="${2:?"single(): Missing second parameter DOMAIN"}"
[ "${_MODE}" = "dns" ] \
&& _DOMAIN_FOLDER="${_RESULT_CERTS}_.${_DOMAIN}"
[ "${_MODE}" = "http" ] \
&& _DOMAIN_FOLDER="${_RESULT_CERTS}${_DOMAIN}"
# always --force because we check expiring on ourself
# _OPTIONS="--issue --force --test"
_OPTIONS="--issue --force"
[ "${_MODE}" = "dns" ] \
&& _OPTIONS="${_OPTIONS} --dns ${AUTOACME_DNS_PROVIDER:?"single(): Missing global parameter AUTOACME_DNS_PROVIDER"} --domain *.${_DOMAIN}"
[ "${_MODE}" = "http" ] \
&& _OPTIONS="${_OPTIONS} --webroot /var/www/letsencrypt"
readonly _ACME_FILE _DOMAIN _DOMAIN_FOLDER _MODE _OPTIONS _RESULT_CERTS
! [ -f "${_ACME_FILE}" ] \
&& echo "Program 'acme.sh' seams not to be installed. Try run 'renewCerts.sh --setup'." \
&& return 1
# cancel on broken configuration
! checkConfigViaHttp "${_MODE}" "${_DOMAIN}" \
&& return 1
# create folder for results
! [ -d "${_DOMAIN_FOLDER}" ] \
&& echo -n "Creating folder '${_DOMAIN_FOLDER}'... " \
&& mkdir -p "${_DOMAIN_FOLDER}" \
&& echo "Done"
# check enddate if third parameter is not --force
! isExpiringSoon "${_MODE}" "${_DOMAIN}" "${3:-""}" \
&& return 0
# backup the keys
[ -f "${_DOMAIN_FOLDER}/fullchain.crt" ] \
&& cp "${_DOMAIN_FOLDER}/fullchain.crt" "${_DOMAIN_FOLDER}/fullchain.crt.bak"
[ -f "${_DOMAIN_FOLDER}/private.key" ] \
&& cp --preserve=mode,ownership "${_DOMAIN_FOLDER}/private.key" "${_DOMAIN_FOLDER}/private.key.bak"
${_ACME_FILE} ${_OPTIONS} \
--domain "${_DOMAIN}" \
--server "letsencrypt" \
--keylength "ec-384" \
--fullchain-file "${_DOMAIN_FOLDER}/fullchain.crt" \
--key-file "${_DOMAIN_FOLDER}/private.key" \
&& echo "Certificate of domain '${_DOMAIN}' was updated." \
&& tryGitPush "${_DOMAIN}" \
&& return 0
echo "Certificate of domain '${_DOMAIN}' remains unchanged."
return 0
}
function isInstalled(){
local _ACME_FILE
_ACME_FILE="${ACME_FILE:?"isInstalled(): Missing global parameter ACME_FILE"}"
readonly _ACME_FILE
[ -f "${_ACME_FILE}" ] \
&& echo "Following version of acme.sh is installed:" \
&& echo "------------------------------------------" \
&& ${_ACME_FILE} --version | tail -n 1 \
&& return 0
return 1
}
function extractTarArchive(){
local _ACME_SETUP_FILE _ACME_TAR_FILE
_ACME_SETUP_FILE="${ACME_SETUP_FILE:?"extractTarArchive(): Missing global parameter ACME_SETUP_FILE"}"
_ACME_TAR_FILE="${ACME_TAR_FILE:?"extractTarArchive(): Missing global parameter ACME_TAR_FILE"}"
readonly _ACME_SETUP_FILE _ACME_TAR_FILE
# extracted file already exists
[ -f "${_ACME_SETUP_FILE}" ] \
&& return 0
[ -f "${_ACME_TAR_FILE}" ] \
&& mkdir -p "/tmp/acme.sh-setup/" \
&& tar -xzf "${_ACME_TAR_FILE}" -C "/tmp/acme.sh-setup/" \
&& [ -f "${_ACME_SETUP_FILE}" ] \
&& return 0
echo "Missing setup file '${_ACME_SETUP_FILE}' after trying to extract '${_ACME_TAR_FILE}'"
return 1
}
function setup(){
local _ACME_SETUP_FILE
_ACME_SETUP_FILE="${ACME_SETUP_FILE:?"setup(): Missing global parameter ACME_SETUP_FILE"}"
readonly _ACME_SETUP_FILE
isInstalled \
&& return 0
! [ $(id -u) = 0 ] \
&& echo "Setup requires execution as user 'root'." \
&& exit 1
! [ "$(echo $HOME)" = "/root" ] \
&& echo "The setup is executed with 'root' privileges but not in the 'root' user environment." \
&& exit 1
! extractTarArchive \
&& exit 1
echo "Starting install of acme.sh:"
echo "----------------------------"
pushd "${_ACME_SETUP_FILE%/*}" > /dev/null 2>&1 #Removes shortest matching pattern '/*' from the end
./acme.sh --install --no-cron --no-profile 2>&1
popd > /dev/null 2>&1
isInstalled \
&& echo \
&& echo 'Now this script can be added into cron-tab (crontab -e),like this e.g.:' \
&& echo \
&& echo '# Each day at 6:00am renew certificates:' \
&& echo '0 6 * * * /renewCerts.sh --http --own > /var/log/renewCerts.sh.log 2>&1' \
&& return 0
echo "Something went wrong during setup."
return 1
}
function usage(){
echo
echo 'Commands:'
echo ' (--dns|--http) --own [--force] : Iterates all domains found in RESULT_CERTS.'
echo ' (--dns|--http) --single DOMAIN [--force] : Issues a certificate for the given domain.'
echo
echo 'Current environment:'
echo " Full name of this script: OWN_FULLNAME='${OWN_FULLNAME}'"
echo " Configuration:"
echo " Version of 'acme.sh' that will be installed: ACME_VERSION='${ACME_VERSION}'"
echo " Tar file containing the setup of 'acme.sh': ACME_TAR_FILE='${ACME_TAR_FILE}'"
echo " Setup file of 'acme.sh' after extraction: ACME_SETUP_FILE='${ACME_SETUP_FILE}'"
echo " Full name of the installed script 'acme.sh': ACME_FILE='${ACME_FILE}'"
echo " Output:"
echo " Path were the issued certificate are saved: RESULT_CERTS='${RESULT_CERTS}'"
return 0
}
function main(){
echo
[ -f "/autoACME.env" ] \
&& source "/autoACME.env" \
&& echo "Environment '/autoACME.env' loaded."
local ACME_FILE ACME_VERSION ACME_SETUP_FILE ACME_TAR_FILE OWN_FULLNAME RESULT_CERTS
OWN_FULLNAME="$(readlink -e ${0})"
ACME_FILE="/root/.acme.sh/acme.sh"
ACME_VERSION="acme.sh-3.1.1"
ACME_SETUP_FILE="/tmp/acme.sh-setup/${ACME_VERSION}/acme.sh"
ACME_TAR_FILE="${OWN_FULLNAME%/*}/${ACME_VERSION}.tar.gz"
RESULT_CERTS="${AUTOACME_RESULT_CERTS%/}" #Removes shortest matching pattern '/' from the end
RESULT_CERTS="${RESULT_CERTS:-"/etc/nginx/ssl"}/"
readonly ACME_FILE ACME_VERSION ACME_SETUP_FILE ACME_TAR_FILE OWN_FULLNAME RESULT_CERTS
local REPOSITORY_URL
isGitRepository \
&& REPOSITORY_URL="$(git -C ${RESULT_CERTS} config --get remote.origin.url)"
readonly REPOSITORY_URL
case "${1}${2}" in
--dns--own)
echo "Renewing own certificates via DNS:"
own "dns" "${3}" \
&& echo "Finished successfully." \
&& return 0
;;
--http--own)
echo "Renewing own certificates via HTTP:"
own "http" "${3}" \
&& echo \
&& echo "Checking configuration of nginx and restart the webserver:" \
&& echo "==========================================================" \
&& nginx -t && systemctl reload nginx \
&& return 0
;;
--dns--single)
echo "Issue single certificate '${3}' via DNS:"
single "dns" "${3}" "${4}" \
&& return 0
;;
--http--single)
echo "Issue single certificate '${3}' via HTTP:"
single "http" "${3}" "${4}" \
&& echo \
&& echo "Checking configuration of nginx and restart the webserver:" \
&& echo "==========================================================" \
&& nginx -t && systemctl reload nginx \
&& return 0
;;
--setup)
setup \
&& return 0
;;
*)
echo "Unknown command '${1}' '${2}'"
usage
return 1
;;
esac
return 1
}
main "$@" && exit 0 || exit 1

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#/bin/bash
function ensureThereAreSSHKeys() {
grep -F 'ssh' "/root/.ssh/id_ed25519.pub" &> /dev/null \
&& echo "SUCCESS: ssh-keys found, printing public key:" \
&& cat "/root/.ssh/id_ed25519.pub" \
&& return 0
# -t type of the key pair
# -f defines the filenames (we use the standard for the selected type here)
# -q quiet, no output or interaction
# -N "" means the private key will not be secured by a passphrase
# -C defines a comment
ssh-keygen \
-t ed25519 \
-f "/root/.ssh/id_ed25519" -q -N "" \
-C "$(date +%Y%m%d)-root@$(hostname -s)_onHost_${AUTOACME_CONTAINER_HOSTNAME%%.*}"
grep -F 'ssh' "/root/.ssh/id_ed25519.pub" &> /dev/null \
&& echo "SUCCESS: ssh-keys generated, printing public key:" \
&& cat "/root/.ssh/id_ed25519.pub" \
&& return 0
echo
echo "FAILED: something went wrong during the generation of the ssh keys..."
echo " These keys are mandantory to access the git repository."
echo "You can try to restart this script."
echo
return 1
}
function ensureGitIsInstalled() {
git --version &> /dev/null \
&& return 0
echo \
&& echo "Installing Git in 30s (ensure the SSH-Key is trusted and has write pemissions)... " \
&& sleep 30 \
&& DEBIAN_FRONTEND=noninteractive \
&& apt-get install git -y &> /dev/null \
&& echo "SUCCESS: $(git --version) is usable now." \
&& return 0
echo
echo "FAILED: something went wrong during the installation of Git..."
echo " Git is mandantory to push the keys into the specified repository."
echo "You can try to install git manually (apt install git)."
echo
return 1
}
function ensureRepositoryIsAvailableAndWritable() {
local _REPOSITORY_FOLDER
_REPOSITORY_FOLDER="${AUTOACME_REPOSITORY_FOLDER:?"ensureRepositoryIsAvailableAndWritable(): Missing global parameter AUTOACME_REPOSITORY_FOLDER"}"
readonly _REPOSITORY_FOLDER
[ -d "${_REPOSITORY_FOLDER}.git" ] \
&& echo \
&& git -C "${_REPOSITORY_FOLDER}" push --dry-run &> /dev/null \
&& echo "Writable repository found in folder '${_REPOSITORY_FOLDER}'." \
&& return 0
! [ -d "${_REPOSITORY_FOLDER}.git" ] \
&& echo \
&& echo "Cloning repository '${AUTOACME_GIT_REPOSITORY_VIA_SSH}'... " \
&& GIT_SSH_COMMAND="ssh -o StrictHostKeyChecking=accept-new" git clone "${AUTOACME_GIT_REPOSITORY_VIA_SSH}" "${_REPOSITORY_FOLDER}" &> /dev/null \
&& git -C "${_REPOSITORY_FOLDER}" config user.name "autoacme on ${AUTOACME_CONTAINER_HOSTNAME%%.*}" \
&& git -C "${_REPOSITORY_FOLDER}" config user.email "autoacme@${AUTOACME_CONTAINER_HOSTNAME%%.*}" \
&& git -C "${_REPOSITORY_FOLDER}" push --dry-run &> /dev/null \
&& echo "SUCCESS: repository cloned into folder '${_REPOSITORY_FOLDER}' and it is writable." \
&& return 0
echo
echo "FAILED: something went wrong during cloning the repository to '${_REPOSITORY_FOLDER}' from:"
echo " - ${AUTOACME_GIT_REPOSITORY_VIA_SSH}"
echo
echo "1.) You can try to clone it manually into: git clone ${AUTOACME_GIT_REPOSITORY_VIA_SSH} '${_REPOSITORY_FOLDER}'"
echo "2.) Check if the repositoty is writable: git -C '${_REPOSITORY_FOLDER}' push --dry-run"
return 1
}
function prepareThisRuntimeForUsingGitOrIgnore() {
[ "${AUTOACME_GIT_REPOSITORY_VIA_SSH}" == "" ] \
&& echo "There is no git repository specified." \
&& echo "To distribute all keys and certificates via a git repository set environment variable:" \
&& echo " - AUTOACME_GIT_REPOSITORY_VIA_SSH" \
&& echo \
&& echo "FIRST AND ONLY WARNING: DO NOT USE ANY PUBLIC GIT SERVICE FOR THAT!" \
&& echo \
&& return 0
ensureThereAreSSHKeys \
&& ensureGitIsInstalled \
&& ensureRepositoryIsAvailableAndWritable \
&& return 0
echo "No job will run inside this container because there is an issue."
echo "The container keeps running, please check your setup..."
return 1
}
AUTOACME_REPOSITORY_FOLDER="/root/acmeResults/"
echo
echo '################################################################################'
echo "# Container started at $(date +%F_%T) on host ${AUTOACME_CONTAINER_HOSTNAME}"
echo '################################################################################'
echo
# Save environment for cronjob
export -p | grep -v -E "(HOME|OLDPWD|PWD|SHLVL)" > "/autoACME.env" \
&& echo "declare -x AUTOACME_RESULT_CERTS=\"${AUTOACME_REPOSITORY_FOLDER}${AUTOACME_PATH_IN_GIT_REPOSITORY#/}\"" >> "/autoACME.env" \
&& echo "SUCCESS: saved environment into file '/autoACME.env'."
# Log start and truncate file: /autoACME.log
echo > /autoACME.log
# Generate SSH keys and setup Git if a repository is specified, on failure keep the container running
prepareThisRuntimeForUsingGitOrIgnore \
|| tail -f /autoACME.log
# Ensure acme.sh ist installed
/renewCerts.sh --setup >> /autoACME.log \
&& echo >> /autoACME.log
echo "Register following entry to crontab:" >> /autoACME.log
echo "------------------------------------" >> /autoACME.log
_CRON_ENTRY="$((RANDOM % 59)) $((RANDOM % 5)) * * * /renewCerts.sh --dns --own >> /autoACME.log 2>&1"
echo "${_CRON_ENTRY}" | tee -a /autoACME.log | crontab -
cron && tail -n 100 -f /autoACME.log