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363 lines
11 KiB
363 lines
11 KiB
# -*- mode: shell-script -*-
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yaml_opt_bash_env() {
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local prefix="$1" key value
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while read-0 key value; do
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new_prefix="${prefix}_${key^^}"
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if [[ "$(echo "$value" | shyaml get-type)" == "struct" ]]; then
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echo "$value" | yaml_opt_bash_env "${new_prefix}"
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else
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printf "%s\0%s\0" "${new_prefix/-/_}" "$value"
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fi
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done < <(shyaml key-values-0)
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}
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yaml_opt_bash_env_ignore_first_level() {
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local prefix="$1" key value
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while read-0 key value; do
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new_prefix="${prefix}_${key^^}"
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if [[ "$(echo "$value" | shyaml get-type)" == "struct" ]]; then
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echo "$value" | yaml_opt_bash_env "${new_prefix}"
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fi
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done < <(shyaml key-values-0)
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}
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get_dc_env() {
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local cfg="$1" action="$2" domain="$3"
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config="\
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$SERVICE_NAME:
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docker-compose:
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environment:"
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if USER_EMAIL=$(echo "$cfg" | shyaml get-value email 2>/dev/null); then
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config+=$'\n'" LETSENCRYPT_USER_MAIL: $USER_EMAIL"
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fi
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if environment_def="$(printf "%s" "$cfg" | shyaml -y get-value env 2>/dev/null)"; then
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while read-0 key value; do
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config+="$(printf "\n %s: %s" "$key" "$value")"
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done < <(e "$environment_def" | yaml_opt_bash_env_ignore_first_level LEXICON)
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if ! provider=$(e "$environment_def" | shyaml get-value provider 2>/dev/null); then
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provider=
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## If no provider is given, we fallback on the first found
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while read-0 key value; do
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[[ "$(echo "$value" | shyaml get-type)" == "struct" ]] && {
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provider="$key"
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break
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}
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done < <(e "$environment_def" | shyaml key-values-0)
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warn "No ${WHITE}provider${NORMAL} key given, had to infer it, chose '$key'."
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fi
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if [ "$provider" ]; then
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config+=$(echo -en "\n LEXICON_PROVIDER: $provider")
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fi
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fi
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challenge_type=$(get_challenge_type "$cfg" "$action" "$domain")
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config+=$(echo -en "\n CHALLENGE_TYPE: $challenge_type")
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info "Challenge type is $challenge_type"
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echo "$config"
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}
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compose_get_challenge_type() {
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local cfg="$1"
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e "$cfg" | shyaml get-value "challenge-type" 2>/dev/null
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}
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letsencrypt_get_challenge_type() {
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local domain="$1" renewal_file
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renewal_file="$SERVICE_DATASTORE"/etc/letsencrypt/renewal/"$domain".conf
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[ -e "$renewal_file" ] || return 1
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grep '^pref_challs' "$renewal_file" | cut -f 2 -d "=" | xargs echo
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}
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letsencrypt_set_renew_before_expiry() {
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local domain="$1" days="$2" renewal_file
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renewal_file="$SERVICE_DATASTORE"/etc/letsencrypt/renewal/"$domain".conf
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[ -e "$renewal_file" ] || return 1
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sed -ri "s/^(#\s+)?(renew_before_expiry\s*=)\s*[0-9]+(\s+days)$/\2 $days\3/g" "$renewal_file"
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}
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letsencrypt_get_renew_before_expiry() {
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local domain="$1" renewal_file
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renewal_file="$SERVICE_DATASTORE"/etc/letsencrypt/renewal/"$domain".conf
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[ -e "$renewal_file" ] || return 1
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if out=$(egrep "^renew_before_expiry\s*=\s*[0-9]+\s+days$" "$renewal_file" 2>/dev/null); then
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e "$out" | sed -r "s/^renew_before_expiry\s*=\s*([0-9]+)\s+days$/\1/g"
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else
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err "Couldn't find 'renew_before_expiry' in letsencrypt renewal" \
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"configuration for domain '$domain'."
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return 1
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fi
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}
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get_challenge_type() {
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local cfg="$1" action="$2" domain="$3" challenge_type renewal_file challenge
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case "$action" in
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create)
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if ! challenge_type=$(compose_get_challenge_type "$cfg"); then
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warn "No ${WHITE}challenge-type${NORMAL} provided, defaulting to 'http'."
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challenge_type=http
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fi
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echo "$challenge_type"
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;;
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renew)
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challenge=$(letsencrypt_get_challenge_type "$domain")
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if [[ "$challenge" =~ ^http ]]; then
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echo "http"
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else
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echo "$challenge"
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fi
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;;
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*)
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err "Invalid action '$action'."
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;;
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esac
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}
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will_need_http_access() {
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local cfg="$1" action="$2" domain="$3" domains args_domains remaining
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challenge_type=$(get_challenge_type "$cfg" "$action" "$domain")
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[ "$challenge_type" == "http" ] || return 1
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}
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has_existing_cert() {
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local domain="$1"
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[ -d "$SERVICE_DATASTORE/etc/letsencrypt/live/$domain" ] || return 1
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}
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letsencrypt_cert_info() {
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local domain="$1"
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compose -q --no-init --no-relations run --rm "$SERVICE_NAME" \
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crt info "$domain"
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}
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letsencrypt_cert_delete() {
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local domain="$1"
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compose --debug --no-init --no-relations run --rm "$SERVICE_NAME" \
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certbot delete --cert-name "$domain"
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}
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valid_existing_cert() {
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local renew_before_expiry="$1" domain="$2" args_domains domains remaining
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shift
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args_domains=("$@")
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has_existing_cert "$domain" || return 1
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info "Querying $domain for previous info..."
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out=$(letsencrypt_cert_info "$domain") || return 1
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domains=$(e "$out" | shyaml get-value domains) || return 1
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domains=$(printf "%s " $domains | tr " " "\n" | sort)
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args_domains=$(printf "%s " "${args_domains[@]}" | tr " " "\n" | sort)
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# info domains: "$domains"
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# info args_domain: "$args_domains"
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remaining=$(e "$out" | shyaml get-value remaining) || return 1
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if [ "$domains" != "$args_domains" ]; then
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info "Domains mismatch:"
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info " old: $domains"
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info " new: $args_domains"
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return 2
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fi
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if [ "$remaining" == EXPIRED ]; then
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info "Existing certificate expired."
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return 1
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fi
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if [ "$remaining" -lt "$renew_before_expiry" ]; then
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info "Existing certificate in renew period" \
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"($remaining remaining days of validity)."
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return 1
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fi
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}
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get_domain_list() {
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compose -q --no-init --no-relations run --rm "$SERVICE_NAME" crt list
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}
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crt() {
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local cfg="$1" action="$2" domain="$3" config \
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stopped_containers container_ids
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shift
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shift
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## expiry was checked, launch the action on the real charm, but take care of
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## correctly running it.
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## - provide env
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## - declare proper ports
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## - stop containers and restart them if necessary
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config=$(get_dc_env "$cfg" "$action" "$domain") || return 1
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stopped_containers=()
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if will_need_http_access "$cfg" "$action" "$domain"; then
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container_ids=($(docker ps \
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--filter label="compose.project=$PROJECT_NAME" \
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--filter publish=80 \
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--format "{{.ID}}"
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)) || exit 1
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for container_id in "${container_ids[@]}"; do
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info "Attempting to clear port 80 by stopping $container_id"
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docker stop -t 5 "$container_id"
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stopped_containers+=("$container_id")
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done
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config+=$(echo -en "\n ports:
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- \"0.0.0.0:80:80\"")
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fi
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compose_opts=()
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if [ "$DEBUG" ]; then
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compose_opts+=("--debug")
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else
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compose_opts+=("--quiet")
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fi
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compose "${compose_opts[@]}" --no-init --no-relations --add-compose-content "$config" \
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run --service-ports --rm "$SERVICE_NAME" crt "$action" "$@"
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errlvl="$?"
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for container_id in "${stopped_containers[@]}"; do
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info "Attempting restart $container_id"
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docker start "$container_id"
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done
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return "$errlvl"
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}
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crt_create() {
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local force service_def cfg renew_before_expiry msg domains
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usage="
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$exname [-h|--help]
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$exname MAIN_DOMAIN [ALT_DOMAINS...]"
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force=
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domains=()
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while [ "$1" ]; do
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case "$1" in
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"--help"|"-h")
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print_usage
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return 0
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;;
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"--force"|"-f") force=1;;
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*) domains+=("$1");;
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esac
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shift
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done
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if [ "${#domains[@]}" == 0 ]; then
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err "At least one domain should be provided as argument."
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print_usage >&2
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return 1
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fi
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service_def=$(get_compose_service_def "$SERVICE_NAME") || return 1
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cfg=$(e "$service_def" | shyaml get-value "options" 2>/dev/null)
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renew_before_expiry=$(e "$cfg" | shyaml get-value "renew-before-expiry" 30 2>/dev/null)
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renew_before_expiry=${renew_before_expiry:-30}
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valid_existing_cert "$renew_before_expiry" "${domains[@]}"
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valid_existing_cert="$?"
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if [ -z "$force" ] && [ "$valid_existing_cert" == 0 ]; then
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if [ "${#domains[@]}" -gt 1 ]; then
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msg=" (with ${domains[*]:1})"
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fi
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info "A valid cert already exists for domain ${domains[0]}$msg."
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return 0
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fi
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if [ "$valid_existing_cert" == 2 ]; then
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err "Domain mismatch detected, lets delete previous cert."
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letsencrypt_cert_delete "${domains[0]}" || return 1
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err "Previous cert for ${domains[0]} deleted."
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fi
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crt "$cfg" create "${domains[@]}" || {
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err "Certificate creation/renew failed for domain '${domains[0]}'."
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return 1
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}
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letsencrypt_set_renew_before_expiry "${domains[0]}" "$renew_before_expiry" || {
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err "Setting renew-before-expiry on '${domains[0]}' failed."
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return 1
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}
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}
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crt_renew() {
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local service_def cfg renew_before_expiry msg start domains_yml \
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domain domain_cfg
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usage="$
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$exname [-h|--help]
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"
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while [ "$1" ]; do
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case "$1" in
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"--help"|"-h")
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print_usage
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return 0
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;;
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*)
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err "No argument required"
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print_usage >&2
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return 1
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;;
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esac
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shift
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done
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service_def=$(get_compose_service_def "$SERVICE_NAME") || return 1
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cfg=$(e "$service_def" | shyaml get-value "options" 2>/dev/null)
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default_renew_before_expiry=$(e "$cfg" | shyaml get-value "renew-before-expiry" 2>/dev/null)
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default_renew_before_expiry=${renew_before_expiry:-30}
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if ! renew_before_expiry=$(letsencrypt_get_renew_before_expiry "$domain") || \
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[ -z "$renew_before_expiry" ]; then
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renew_before_expiry=$default_renew_before_expiry
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fi
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start="$SECONDS"
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info "Get domain list.."
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domains_yml=$(get_domain_list) || return 1
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info " .. Done ${GRAY}($((SECONDS - start))s)${NORMAL}"
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[ "$domains_yml" ] || {
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info "No domain founds"
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return 0
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}
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failed=()
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while read-0 domain domain_cfg; do
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remaining=$(e "$domain_cfg" | shyaml get-value "remaining") || return 1
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if [ "$remaining" == EXPIRED ] || [ "$remaining" -lt "$renew_before_expiry" ]; then
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if [ "$remaining" == EXPIRED ]; then
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info "Renewing domain $domain (expired)."
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else
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info "Renewing domain $domain ($remaining days left)."
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fi
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crt "$cfg" renew "$domain"
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if [ "$?" != "0" ]; then
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failed+=("$domain")
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err "Certificate renew of '$domain' failed."
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fi
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else
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info "Domain $domain does not need renewing ($remaining days left)."
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fi
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done < <(e "$domains_yml" | shyaml key-values-0)
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if [ "${#failed[@]}" -gt 0 ]; then
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err "At least one domain failed to be renewed: ${failed[@]}"
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return 1
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fi
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}
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