dist: add a sample systemd service

[Davidson-Souza]

What is this PR for?

This PR adds a sample systemd service that may be used by package managers.

What is the purpose of this pull request?

• Bug fix;
• New feature;
• Docs update;
• Test;
• Other: .

Which aspect of floresta its being addresed?

• Blockchain;
• Nodes communication;
• User consumption;
• Utreexo accumulator;
• Other: Build/distribution.

Checklists

• I've signed all my commits;
• I ran just lint;
• I ran cargo test;
• I checked the integration tests;
• I'm linking the issue being fixed by this PR (if any).

Description

This PR adds a new floresta.service file that contains a fully functional systemd service to run floresta as a system-wide service. It is meant for package managers and automated scripts that installs floresta and makes the environment for it to run.

Notes to the reviewers

For this service to work you need a user and group called florestad with a home at /var/lib/florestad and the following directories:

d /var/lib/florestad 0710 florestad florestad - -
d /etc/florestad     0710 florestad florestad - -

[jaoleal]

Concept ACK.
IMO this pr could be complemented with a check_setup_for_service.sh

Something like this

#!/bin/bash

# This script is intended to serve as a demonstration of which setup floresta.service needs to run properly.

# Check if the group 'florestad' exists
if getent group florestad > /dev/null 2>&1; then
    echo "Group 'florestad' exists."
else
    echo "Group 'florestad' does not exist."
    return 1
fi

# Check if the user 'florestad' exists
if id -u florestad > /dev/null 2>&1; then
    echo "User 'florestad' exists."
else
    echo "User 'florestad' does not exist."
    return 11
fi

# Check if the directory /var/lib/florestad exists and has proper permissions
if [ -d "/var/lib/florestad" ]; then
    echo "Directory '/var/lib/florestad' exists."
    if [ "$(stat -c '%U' /var/lib/florestad)" == "florestad" ] && [ "$(stat -c '%G' /var/lib/florestad)" == "florestad" ]; then
        echo "Directory '/var/lib/florestad' is owned by user 'florestad' and group 'florestad'."
    else
        echo "Directory '/var/lib/florestad' is not owned by user 'florestad' and group 'florestad'."
        return 1
        fi
else
    echo "Directory '/var/lib/florestad' does not exist."
    return 1
fi

# Check if the directory /etc/florestad exists and has proper permissions
if [ -d "/etc/florestad" ]; then
    echo "Directory '/etc/florestad' exists."
    if [ "$(stat -c '%U' /etc/florestad)" == "florestad" ] && [ "$(stat -c '%G' /etc/florestad)" == "florestad" ]; then
        echo "Directory '/etc/florestad' is owned by user 'florestad' and group 'florestad'."
    else
        echo "Directory '/etc/florestad' is not owned by user 'florestad' and group 'florestad'."
        return 1
        fi
else

    echo "Directory '/etc/florestad' does not exist."
    return 1
fi

[Davidson-Souza]

Concept ACK. IMO this pr could be complemented with a check_setup_for_service.sh

Something like this

#!/bin/bash

# This script is intended to serve as a demonstration of which setup floresta.service needs to run properly.

# Check if the group 'florestad' exists
if getent group florestad > /dev/null 2>&1; then
    echo "Group 'florestad' exists."
else
    echo "Group 'florestad' does not exist."
    return 1
fi

# Check if the user 'florestad' exists
if id -u florestad > /dev/null 2>&1; then
    echo "User 'florestad' exists."
else
    echo "User 'florestad' does not exist."
    return 11
fi

# Check if the directory /var/lib/florestad exists and has proper permissions
if [ -d "/var/lib/florestad" ]; then
    echo "Directory '/var/lib/florestad' exists."
    if [ "$(stat -c '%U' /var/lib/florestad)" == "florestad" ] && [ "$(stat -c '%G' /var/lib/florestad)" == "florestad" ]; then
        echo "Directory '/var/lib/florestad' is owned by user 'florestad' and group 'florestad'."
    else
        echo "Directory '/var/lib/florestad' is not owned by user 'florestad' and group 'florestad'."
        return 1
        fi
else
    echo "Directory '/var/lib/florestad' does not exist."
    return 1
fi

# Check if the directory /etc/florestad exists and has proper permissions
if [ -d "/etc/florestad" ]; then
    echo "Directory '/etc/florestad' exists."
    if [ "$(stat -c '%U' /etc/florestad)" == "florestad" ] && [ "$(stat -c '%G' /etc/florestad)" == "florestad" ]; then
        echo "Directory '/etc/florestad' is owned by user 'florestad' and group 'florestad'."
    else
        echo "Directory '/etc/florestad' is not owned by user 'florestad' and group 'florestad'."
        return 1
        fi
else

    echo "Directory '/etc/florestad' does not exist."
    return 1
fi

Those configurations should come from your package manager. And any decent PM would check those anyway.

[Davidson-Souza]

@luisschwab done!

[luisschwab]

Found a few more issues, but this should be it.

[Davidson-Souza]

Fixed. I'm intentionally making it only group-readable, so I've updated the PR description with mode 0710 instead of 0770

[luisschwab]

Found a few more issues, but this should be it.

Found a few more. Third time's the charm!

[Davidson-Souza]

Jeez, now I think I got all of them

[luisschwab]

ACK 66afab5