31 lines
767 B
Bash
31 lines
767 B
Bash
#!/bin/bash
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# create a temporary directory for an SSH key
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SSH_KEY_DIR=$(mktemp -d)
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# if no path to the key exists, create a temporary one
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if [[ $SSH_KEY_PATH == "" ]]; then
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SSH_KEY_PATH=$SSH_KEY_DIR/id_ed25519
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ssh-keygen -q -t ed25519 -N "" -f $SSH_KEY_PATH
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fi
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vault ssh \
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-no-exec \
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-field=signed_key \
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-mode=ca \
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-role="$VSSH_ROLE" \
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-valid-principals="$VSSH_PRINCIPALS" \
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-public-key-path=$SSH_KEY_PATH.pub \
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-private-key-path=$SSH_KEY_PATH \
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localhost > $SSH_KEY_PATH.pub.signed
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chmod 400 $SSH_KEY_PATH.pub.signed
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# DEBUG
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ssh-keygen -L -f $SSH_KEY_PATH.pub.signed
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# execute the SSH
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ssh -i $SSH_KEY_PATH -i $SSH_KEY_PATH.pub.signed $@
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# delete the signed key and temporary key if exists
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rm -f $SSH_KEY_PATH.pub.signed
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rm -rf $SSH_KEY_DIR
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