allow multiple recipients

Dockerfile

@@ -4,6 +4,7 @@ MAINTAINER technik@myfoodmap.de
 RUN apk add --update \
     py-pip \
     gpgme \
+    sed \
     xz \
     && rm -rf /var/cache/apk/*
 

backup.sh

@@ -6,7 +6,9 @@ cd /backup
 tar cJf ~/$S3_BUCKET_NAME$BACKUP_DATE.tar.xz ./*
 cd /
 
-gpg --trust-model always --output ~/$S3_BUCKET_NAME$BACKUP_DATE.tar.xz.gpg --encrypt --recipient $GPG_RECIPIENT ~/$S3_BUCKET_NAME$BACKUP_DATE.tar.xz
+RECIPIENT=$(echo "$GPG_RECIPIENT" | sed "s/,/ --recipient /")
+
+gpg --trust-model always --output ~/$S3_BUCKET_NAME$BACKUP_DATE.tar.xz.gpg --encrypt --recipient $RECIPIENT ~/$S3_BUCKET_NAME$BACKUP_DATE.tar.xz
 rm ~/$S3_BUCKET_NAME$BACKUP_DATE.tar.xz
 
 aws s3 cp ~/$S3_BUCKET_NAME$BACKUP_DATE.tar.xz.gpg s3://$S3_BUCKET_NAME/$S3_BUCKET_NAME$BACKUP_DATE.tar.xz.gpg --storage-class STANDARD_IA