cyberia/research/mimi/deploy/setup.sh

shell
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#!/usr/bin/env bash
set -e
if span> ; then
    echo "Set TARGET environment variable to match SSH host to be run"
    exit 1
fi
if span> ; then
    echo "Set NEW_USER envrionment variable with created user's name"
    exit 1
fi
if span> ; then
    echo "Set SSH_KEY envrionment variable with SSH pub key to be used for login"
    exit 1
fi

ETC_PATH="${ETC_PATH:-./etc}"

echo "[USER INITIALIZATION]"
ssh "root@${TARGET}" <<EOF
set -e
if ! id -u "$NEW_USER" &>/dev/null; then
    echo "Creating user $NEW_USER"
    useradd --create-home --shell "\$(command -v bash)" "$NEW_USER"
    echo "User $NEW_USER" created
else
    echo "No need to create a user (exists)"
fi

authorized_keys="/home/$NEW_USER/.ssh/authorized_keys"
install -d -m 700 -o "$NEW_USER" -g "$NEW_USER" \$(dirname "\$authorized_keys")
test -f "\$authorized_keys" || touch "\$authorized_keys"
chmod 600 "\$authorized_keys"
chown "$NEW_USER:$NEW_USER" "\$authorized_keys"

if ! grep -q "$SSH_KEY" "\$authorized_keys"; then
    echo "Authorizing SSH key $SSH_KEY"
    echo "$SSH_KEY" >>"\$authorized_keys"
else
    echo "SSH key already saved"
fi
EOF

echo "[COPY /etc]"
if span> ; then
    dest="root@$TARGET:/"
    echo "Starting copying $ETC_PATH to $dest"
    if ! command -v rsync >/dev/null 2>&1; then
	echo "install rsync. scp sucks in copying directory trees"
	exit 1
    fi
    rsync \
	-avh \
	--progress \
	--chown=root:root \
	"${ETC_PATH%%+(/)}" "$dest"
else
    echo "etc directory ($ETC_PATH) not found. Skipping"
fi

echo "[USER CONFIGURATION]"
ssh "${NEW_USER}@${TARGET}" <<'EOF'
set -e

# Update .bashrc
cat <<'BASHRC' >/tmp/bashrc
export PATH=$HOME/.local/bin:$HOME/go/bin:$PATH
df -h | grep '/MATH_PLACEHOLDER_64" (used "$5") of "$2}'
echo "Podman containers:" && podman ps --format 'table {{.Names}}  {{.Status}}  {{.ID}}'
BASHRC
while read -r line; do
    if grep -q "^$line\$" ~/.bashrc; then
        echo "Skipping (already added) line:[$line]"
    else
        echo "$line" >> ~/.bashrc
        echo "Added to ~/.bashrc line:[$line]"
    fi
done </tmp/bashrc
rm /tmp/bashrc

# Generate SSH deployment key
sshpk="$HOME/.ssh/id_ed25519"
if  -f "$sshpk" ; then
   echo "SSH deployment key already generated. Here it is:"
else
   echo "Generating new SSH deployment key"
   yes | ssh-keygen -t ed25519 -f "$sshpk" -N ''
fi
cat "$sshpk.pub"
EOF

echo "[INSTALLING DEPENDENCIES]"
while read -r path; do
    echo "Installing $path"
    ssh "$NEW_USER@$TARGET" bash -s < "$path"
done < <(find ./dependencies -type f)

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