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4.0.5 (#400)
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* Simple fix for podman to work; whitespace clean up (#396)

* Fix set_pihole_exec to match full container names (#390)

Fix set_pihole_exec to match full container names, rather
than their substrings, by adding begin and end anchors to
the 'docker ps -qf name=PATTERN' being used.

Signed-off-by: William Blew <[email protected]>

* Fix the detect_xxx_pihole routines. (#389)

Fix the detect_xxx_pihole routines to respect the configurable
PIHOLE_CONTAINER_IMAGE variable.

The ghcr.io/pi-hole/pihole image is also released by the Pi-hole
project, just as the pihole/pihole image.

This commit enables ghcr.io image usage by adding the following
to the /etc/gravity-sync.conf file:

PIHOLE_CONTAINER_IMAGE='ghcr.io/pi-hole/pihole'

Signed-off-by: William Blew <[email protected]>
Co-authored-by: Michael Stanclift <[email protected]>

* Make check for sudo privileges more accurate (#375)

* Make check for sudo privileges more accurate

The existing method of checking if the Gravity Sync user has sudo rights is flawed, in that it will break if the user is not in the `sudo` group (on Debian based distros) or the `wheel` group (on CentOS/RHEL distros).

A more accurate way of checking if a user has sudo privileges is using `sudo --validate` or `sudo -n true`; both of which return `0` if the user has sudo privileges.

This commit updates the `validate_sudo_status` function to use `sudo --validate` so that Gravity Sync is actually checking if a user has sudo privileges, rather than just checking group memberships.

* Fix bug in patch

---------

Co-authored-by: llamalump <[email protected]>

* Fix: GS_SSH_PORT can be changed now via  'gravity-sync config <NEW_PORT>' when already set in gravity-sync.conf. Fix: Initial sync of static DHCP and CNAME to 'empty pihole' now works. Enhancement: Various settings now settable via ENV vars (for Docker) (#384)

* SSH custom port: Fixed bug, where GS_SSH_PORT is overwritten by gravity-sync.conf (if set) when calling 'gravity-sync config NEW_SSH_PORT'. Docker enhancements: Made many config-variables settable via ENV vars

* Fixing initial push of CNAME and Static DHCP entries to an 'empty' remote (fixes #377)

* Removing unecessary 'export' keyword

* Fixed 'md5_recheck' for the bug #377

* Adding ENV documentation

* Fixing typo

* Fixed type and nicely formatted tables with emacs

---------

Co-authored-by: Michael Stanclift <[email protected]>

* Update VERSION

* Update gravity-sync

---------

Signed-off-by: William Blew <[email protected]>
Co-authored-by: Matt Woodson <[email protected]>
Co-authored-by: William Blew <[email protected]>
Co-authored-by: Seb Thomson <[email protected]>
Co-authored-by: llamalump <[email protected]>
Co-authored-by: Klaus Zipfel <[email protected]>
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@vmstan @mwoodson
@wblew @rst-ack @systemofapwne
6 people authored Jul 10, 2023
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85 changes: 85 additions & 0 deletions ENV.md
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<p align="center">
<img src="https://vmstan.com/content/images/2021/02/gs-logo.svg" width="300" alt="Gravity Sync">
</p>

<span align="center">

# Gravity-sync ENVs

</span>

These tables are a list of all gravity-sync settings, that can be tweaked via ENVs. Keep in mind that some of them are stored in `/etc/gravity-sync/gravity-sync.conf` after running `gravity-sync configure` and that `gravity-sync.conf` has higher priority than ENVs.

### Local and remote paths & settings
These settings will determine, from where (locally) to where (remotely) will be synced and with which account/permissions
| Variable | Default | Value | Description |
|----------------------------|------------------|------------|----------------------------------------------------|
| `LOCAL_PIHOLE_DIRECTORY` | `/etc/pihole` | path | Path to local pi-hole instance in the filesystem |
| `REMOTE_PIHOLE_DIRECTORY` | `/etc/pihole` | path | Path to remote pi-hole instanc in the filesystem |
| `LOCAL_DNSMASQ_DIRECTORY` | `/etc/dnsmasq.d` | path | Path to local dnsmasqd instance in the filesystem |
| `REMOTE_DNSMASQ_DIRECTORY` | `/etc/dnsmasq.d` | path | Path to remote dnsmasqd instance in the filesystem |
| `LOCAL_FILE_OWNER` | `pihole:pihole` | user:group | Local owner and group of the pi-hole config |
| `REMOTE_FILE_OWNER` | `pihole:pihole` | user:group | Remote owner and group of the pi-hole config |

### Docker specific settings
Gravity-sync will check your system for a native pi-hole install first (on local and remote site) and if does not detect any, tests against docker/podman pi-hole instances.
Here, you can specific the docker or podman container name, that gravity-sync should interact with.
| Variable | Default | Value | Description |
|---------------------------|----------|----------------|--------------------------------------------|
| `LOCAL_DOCKER_CONTAINER` | `pihole` | container name | Container name of pi-hole running locally |
| `REMOTE_DOCKER_CONTAINER` | `pihole` | container name | Container name of pi-hole running remotely |

### Paths to standard files and folders
These settings are most likely the same on all systems. No need to touch them but nice to be able to touch them, if necessary.
| Variable | Default | Value | Description |
|----------------------------|-------------------------|-------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `DEFAULT_PIHOLE_DIRECTORY` | `/etc/pihole` | path | Docker/Podman: Path to pi-hole instance within a docker/podman containrt. Don't mix up with `LOCAL_PIHOLE_DIRECTORY`, which is only used against local pi-hole instances (non-dockerized). |
| `LOCAL_PIHOLE_BINARY` | `/usr/local/bin/pihole` | path | Path to `pihole` binary on local system |
| `REMOTE_PIHOLE_BINARY` | `/usr/local/bin/pihole` | path | Path to `pihole` binary on remote system |
| `LOCAL_FTL_BINARY` | `/usr/bin/pihole-FTL` | path | Path to `pihole-FTL` binary on local system |
| `REMOTE_FTL_BINARY` | `/usr/bin/pihole-FTL` | path | Path to `pihole-FTL` binary on remote system |
| `LOCAL_DOCKER_BINARY` | `/usr/bin/docker` | path | Path to `docker` binary on local system |
| `REMOTE_DOCKER_BINARY` | `/usr/bin/docker` | path | Path to `docker` binary on remote system |
| `LOCAL_PODMAN_BINARY` | `/usr/bin/podman` | path | Path to `podman` binary on local system |
| `REMOTE_PODMAN_BINARY` | `/usr/bin/podman` | path | Path to `podman` binary on remote system |
| `PIHOLE_CONTAINER_IMAGE` | `pihole/pihole` | path | Name of the default pi-hole docker image |

### Nitty-gritty finetuning the target files
Here, you can specifiy the gravity, DNS (A, CNAME) and DHCP settings file of pi-hole. It is almost certain, that these filenames do never change (except upstream pi-hole decides so). Better do not touch them.
| Variable | Default | Value | Description |
|-----------------|-------------------------------|-------|--------------------------------------------|
| `PH_GRAVITY_FI` | `gravity.db` | file | The gravity filename (blocklist) of pihole |
| `PH_CUSTOM_DNS` | `custom.list` | file | The custom DNS (A) filename of pihole |
| `PH_CNAME_CONF` | `05-pihole-custom-cname.conf` | file | The custom DNS (CNAME) filename of pihole |
| `PH_SDHCP_CONF` | `04-pihole-static-dhcp.conf` | file | The custom DHCP filename of pihole |

### Backup Customization
| Variable | Default | Value | Description |
|----------------------------|---------|----------------|-----------------------------------------------------------------------------------------------|
| `GS_BACKUP_TIMEOUT` | `240` | seconds | How long shall we allow a gravity.db backup task to run, before it is deemed to be timed out? |
| `GS_BACKUP_INTEGRITY_WAIT` | `5` | seconds | Some wait time, before integrity checks are performed on gravity.db |
| `GS_BACKUP_EXT` | `gsb` | file-extension | Local and remote gravity.db backup files will get this file-extension added before merge. |

### GS Folder/File Locations
| Variable | Default | Value | Description |
|-------------------------|-----------------------------------|-------|--------------------------------------------------------------------------------------------|
| `GS_ETC_PATH` | `/etc/gravity-sync` | path | Path to the gravity-sync work & config directory |
| `GS_CONFIG_FILE` | `gravity-sync.conf` | file | Name of the gravity.sync config file |
| `GS_SYNCING_LOG` | `gs-sync.log` | file | Logfile for gravity-sync |
| `GS_GRAVITY_FI_MD5_LOG` | `gs-gravity.md5` | file | Filename for storing `PH_GRAVITY_FI` hash (used for sync comparison locally and on remote) |
| `GS_CUSTOM_DNS_MD5_LOG` | `gs-clist.md5` | file | Filename for storing `PH_CUSTOM_DNS` hash (used for sync comparison locally and on remote) |
| `GS_CNAME_CONF_MD5_LOG` | `05-pihole-custom-cname.conf.md5` | file | Filename for storing `PH_CNAME_CONF` hash (used for sync comparison locally and on remote) |
| `GS_SDHCP_CONF_MD5_LOG` | `04-pihole-static-dhcp.conf.md5` | file | Filename for storing `PH_SDHCP_CONF` hash (used for sync comparison locally and on remote) |

### Remote SSH config
Customize parameters for accessing the remote end via SSH
| Variable | Default | Value | Description |
|---------------|----------------------------------|-------|---------------------------------------------------------------------------------------------------------|
| `GS_SSH_PORT` | `22` | port | Port of the remote gravity-sync container/host |
| `GS_SSH_PKIF` | `<GS_ETC_PATH>/gravity-sync.rsa` | file | Path to the local SSH private key of gravity-sync, that will be used for pubkey auth against the remote |

### Upgrade: Gravity-sync sourcecode location
Gravity-sync is locally installed as a github repo. In order to upgrade your local gravity-sync instance via `gravity-sync upgrade` to the latest version, the path to that git-repo must be known and can be specified below.
| Variable | Default | Value | Description |
|-----------------|---------------------|-------|---------------------------------------------|
| `GS_LOCAL_REPO` | `<GS_ETC_PATH>/.gs` | path | Local install path of the gravity-sync repo |
2 changes: 1 addition & 1 deletion VERSION
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4.0.4
4.0.5
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