Files
ubuntu-post-install/services/anki-sync-server.sh
T
Claude c2cf5bfe69 Add sync-account management menu to anki-sync-server
Re-running the installer against an existing install now offers "Manage
sync accounts" (add / remove / rotate a password) as a first-class menu
option, instead of requiring a hand-edit of .env kept in lockstep with
docker-compose.yml.

_anki_rewrite_account_block() regenerates the SYNC_USERn lines in both
files from the current account list, always renumbered contiguously from
1, and is shared by the initial install and every management mutation so
they can't drift apart. Only SYNC_USER/ANKI_SYNC_* lines are touched —
port, Caddy wiring, and everything else in either file is left alone.

Verified against a stubbed docker/ss sandbox: add, remove (mid-list, with
renumbering), and password rotation all produce the expected .env/
docker-compose.yml diffs.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014DyceEVVeQ33EeS6C1PDv5
2026-09-09 14:58:32 +00:00

647 lines
28 KiB
Bash

#!/bin/bash
# services/anki-sync-server.sh — Self-hosted Anki flashcard sync server.
# Part of the modular post-install system (sourced by setup.sh).
#
# Can also be run standalone on any machine:
# sudo bash anki-sync-server.sh
# (Docker must already be installed when run standalone)
# ── Standalone bootstrap ──────────────────────────────────────────────────────
# Detected when the script is executed directly rather than sourced by setup.sh.
# Sets up helpers and globals, then defers execution until after the function
# definition at the bottom of this file.
if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
[[ "$(id -u)" == "0" ]] || { echo "Run with sudo: sudo bash $0"; exit 1; }
_SELF_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
_COMMON="$_SELF_DIR/../lib/common.sh"
if [[ -f "$_COMMON" ]]; then
# Full repo present — use the real helpers (picks up ~/docker/.config too)
# shellcheck source=../lib/common.sh
source "$_COMMON"
else
# One-off copy — inline minimal stubs so the script works without the repo
log_info() { echo -e "\033[0;34m[INFO]\033[0m $*"; }
log_success() { echo -e "\033[0;32m[OK]\033[0m $*"; }
log_warning() { echo -e "\033[1;33m[WARN]\033[0m $*"; }
log_error() { echo -e "\033[0;31m[ERROR]\033[0m $*" >&2; }
require_docker() {
command -v docker &>/dev/null || {
log_error "Docker not found. Install it first:"
log_error " curl -fsSL https://get.docker.com | sudo sh"
return 1
}
docker compose version &>/dev/null || {
log_error "Docker Compose plugin missing:"
log_error " sudo apt-get install -y docker-compose-plugin"
return 1
}
}
ensure_docker_dir_ownership() {
chown -R "$ACTUAL_USER:$ACTUAL_USER" "$@" 2>/dev/null || true
}
port_in_use() {
local _port="$1" _proto="${2:-tcp}"
local _flag="-tlnH"
[ "$_proto" = "udp" ] && _flag="-ulnH"
ss "$_flag" "sport = :${_port}" 2>/dev/null | grep -q .
}
find_free_port() {
local _varname="$1" _port="$2" _proto="${3:-tcp}"
while port_in_use "$_port" "$_proto"; do
_port=$((_port + 1))
done
eval "$_varname='$_port'"
}
# Match common.sh's eval-based pattern so local vars in install_* are set correctly
prompt_text() {
local _q="$1" _def="$2" _var="$3" _r
[[ "${UNATTENDED:-false}" == "true" ]] && { eval "$_var='$_def'"; return; }
read -r -p " $_q " _r
eval "$_var='${_r:-$_def}'"
}
prompt_yn() {
local _q="$1" _def="$2" _var="$3" _r
[[ "${UNATTENDED:-false}" == "true" ]] && { eval "$_var='$_def'"; return; }
read -r -p " $_q " _r
eval "$_var='${_r:-$_def}'"
}
prompt_reinstall_mode() {
local _var="$1" _r
if [[ "${UNATTENDED:-false}" == "true" ]]; then eval "$_var='cancel'"; return; fi
echo " Already installed."
read -r -p " (u)pdate / (f)resh reinstall / (c)ancel [c]: " _r
case "${_r,,}" in
u|update) eval "$_var='update'" ;;
f|fresh) eval "$_var='fresh'" ;;
*) eval "$_var='cancel'" ;;
esac
}
generate_password() {
local length="${1:-32}"
openssl rand -base64 48 | tr -dc 'a-zA-Z0-9' | head -c "$length"
}
configure_caddy_for_service() {
local _name="$1" _upstream="$2" _subdomain="$3" _extra="${4:-}"
local _caddy_dir="$DOCKER_DIR/caddy"
local _caddyfile="$_caddy_dir/Caddyfile"
local _display_port="${_upstream##*:}"
# Determine mode: local Caddy, remote Caddy, or none
local _mode="none"
[[ -d "$_caddy_dir" ]] && _mode="local"
[[ -n "${CADDY_REMOTE_HOST:-}" ]] && [[ "$_mode" != "local" ]] && _mode="remote"
[[ "$_mode" == "none" ]] && {
log_info "Access $_name directly on port $_display_port."
return 0
}
echo ""
local _do_caddy=""
if [[ "$_mode" == "remote" ]]; then
log_info "Remote Caddy configured (${CADDY_REMOTE_HOST})."
log_info "A snippet file will be saved to ~/docker/caddy-snippets/."
fi
read -r -p " Configure Caddy reverse proxy for $_name? [y/N]: " _do_caddy
[[ "${_do_caddy,,}" == "y" ]] || {
log_info "Skipping — access at: http://localhost:$_display_port"
return 0
}
# Domain prompt — pre-fill from SITE_DOMAIN when available
local _default_domain=""
if [[ -n "${SITE_DOMAIN:-}" ]] && [[ "$SITE_DOMAIN" != "example.com" ]]; then
_default_domain="${_subdomain}.${SITE_DOMAIN}"
log_info "Default: $_default_domain"
fi
local _domain=""
read -r -p " Domain [${_default_domain:-required}]: " _domain
_domain="${_domain:-$_default_domain}"
[[ -n "$_domain" ]] || { log_warning "No domain entered — skipping Caddy."; return 0; }
# Build upstream — remote Caddy uses host IP:port, not container name
local _block_upstream="$_upstream"
if [[ "$_mode" == "remote" ]]; then
_block_upstream="${CADDY_REMOTE_HOST}:${_display_port}"
fi
local _site_block
_site_block="$(cat << CBLOCK
# $_name
${_domain} {
reverse_proxy ${_block_upstream}
header {
Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
X-Content-Type-Options "nosniff"
X-Frame-Options "SAMEORIGIN"
Referrer-Policy "strict-origin-when-cross-origin"
}
log {
output file /var/log/caddy/${_domain}.log
format json
}
${_extra}
}
CBLOCK
)"
if [[ "$_mode" == "local" ]]; then
if [[ -f "$_caddyfile" ]]; then
local _bk="$_caddy_dir/Caddyfile.backup.$(date +%Y%m%d-%H%M%S)"
cp "$_caddyfile" "$_bk"
log_info "Backed up Caddyfile to $(basename "$_bk")"
else
touch "$_caddyfile"
fi
if grep -q "^${_domain}" "$_caddyfile" 2>/dev/null; then
log_warning "$_domain already in Caddyfile"
local _ow=""
read -r -p " Overwrite? [y/N]: " _ow
[[ "${_ow,,}" == "y" ]] || { log_info "Keeping existing entry."; return 0; }
sed -i "/^${_domain}/,/^}/d" "$_caddyfile"
fi
printf '%s\n' "$_site_block" >> "$_caddyfile"
log_success "Added $_domain to Caddyfile"
docker exec caddy caddy fmt --overwrite /etc/caddy/Caddyfile 2>/dev/null || true
if docker exec caddy caddy reload --config /etc/caddy/Caddyfile 2>/dev/null; then
log_success "$_name accessible at: https://$_domain"
else
log_warning "Reload failed — check: docker logs caddy"
log_info "Manual reload: docker exec caddy caddy reload --config /etc/caddy/Caddyfile"
fi
else
local _snippet_dir="$DOCKER_DIR/caddy-snippets"
local _snippet_file="$_snippet_dir/${_subdomain}.caddy"
mkdir -p "$_snippet_dir"
printf '%s\n' "$_site_block" > "$_snippet_file"
chown "$ACTUAL_USER:$ACTUAL_USER" "$_snippet_file" 2>/dev/null || true
log_success "Snippet saved: $_snippet_file"
log_info "Copy to Caddy machine:"
log_info " scp $_snippet_file caddy-host:~/caddy-snippets/"
log_info " rsync -av $_snippet_dir/ caddy-host:~/caddy-snippets/ (all at once)"
fi
}
write_readme() {
local _dir="$1"; shift
mkdir -p "$_dir"
cat > "$_dir/README.md"
}
backup_if_exists() {
local _file="$1"
[ -f "$_file" ] || return 0
cp -p "$_file" "${_file}.bak.$(date +%Y%m%d-%H%M%S)" 2>/dev/null
}
fi
# Globals — ACTUAL_USER/ACTUAL_HOME must come before DOCKER_DIR
# ($HOME under sudo is /root, not the real user's home)
ACTUAL_USER="${ACTUAL_USER:-${SUDO_USER:-$USER}}"
ACTUAL_HOME="$(getent passwd "$ACTUAL_USER" 2>/dev/null | cut -d: -f6 || echo "${HOME:-/root}")"
DOCKER_DIR="${DOCKER_DIR:-$ACTUAL_HOME/docker}"
DRY_RUN="${DRY_RUN:-false}"
UNATTENDED="${UNATTENDED:-false}"
SITE_TZ="${SITE_TZ:-$(cat /etc/timezone 2>/dev/null || echo UTC)}"
SITE_DOMAIN="${SITE_DOMAIN:-example.com}"
SITE_CADDY_NET="${SITE_CADDY_NET:-caddy_net}"
register_service() { :; } # no-op — no wizard to register into
_RUN_STANDALONE=1
fi
# ─────────────────────────────────────────────────────────────────────────────
register_service anki-sync-server utilities "Self-hosted Anki flashcard sync server (spaced repetition, syncs across devices without AnkiWeb)" 8080
# Reads the current ANKI_SYNC_USERn/ANKI_SYNC_PASSWORDn pairs out of an
# instance's .env into the caller's ANKI_USERS/ANKI_PASSWORDS arrays (bash's
# dynamic scoping means a `local` array declared in the caller is visible
# here without being passed explicitly — same assumption every other helper
# below makes). Numbering is always kept contiguous from 1 by
# _anki_rewrite_account_block, so stopping at the first missing index is
# safe — there's never a gap to skip over.
_anki_load_accounts() {
local _dir="$1" _n=1 _u _p
ANKI_USERS=() ANKI_PASSWORDS=()
while true; do
_u="$(grep "^ANKI_SYNC_USER${_n}=" "$_dir/.env" 2>/dev/null | cut -d= -f2-)"
[ -z "$_u" ] && break
_p="$(grep "^ANKI_SYNC_PASSWORD${_n}=" "$_dir/.env" 2>/dev/null | cut -d= -f2-)"
ANKI_USERS+=("$_u")
ANKI_PASSWORDS+=("$_p")
_n=$((_n + 1))
done
}
# Regenerates the SYNC_USERn=... lines in docker-compose.yml and the
# matching ANKI_SYNC_USERn/ANKI_SYNC_PASSWORDn pairs in .env from the
# caller's current ANKI_USERS/ANKI_PASSWORDS arrays (always renumbered
# contiguously from 1 — see _anki_load_accounts). Used by both the initial
# install and every account-management mutation (add/remove/rotate) so the
# two never drift apart, same reasoning as CLAUDE.md's shared-helper
# guidance for update vs. fresh-install codepaths. Leaves the port, Caddy
# block, and every other line in either file untouched — only lines
# matching the SYNC_USER/ANKI_SYNC_* patterns are touched.
_anki_rewrite_account_block() {
local _dir="$1"
local _compose="$_dir/docker-compose.yml"
local _env="$_dir/.env"
sed -i '/^ - SYNC_USER[0-9]\+=/d' "$_compose"
sed -i '/^ANKI_SYNC_USER[0-9]\+=/d; /^ANKI_SYNC_PASSWORD[0-9]\+=/d' "$_env"
local _compose_lines="" _env_lines="" i idx
for i in "${!ANKI_USERS[@]}"; do
idx=$((i + 1))
_compose_lines+=" - SYNC_USER${idx}=\${ANKI_SYNC_USER${idx}}:\${ANKI_SYNC_PASSWORD${idx}}
"
_env_lines+="ANKI_SYNC_USER${idx}=${ANKI_USERS[$i]}
ANKI_SYNC_PASSWORD${idx}=${ANKI_PASSWORDS[$i]}
"
done
# Insert right after the fixed SYNC_BASE anchor line — always present,
# written by every version of this script's install flow — instead of
# appending at the end, so the block stays grouped with SYNC_HOST/
# SYNC_PORT/SYNC_BASE rather than drifting after `volumes:`.
local _tmp
_tmp="$(mktemp)"
printf '%s' "$_compose_lines" > "$_tmp"
sed -i "\|^ - SYNC_BASE=/data\$|r $_tmp" "$_compose"
rm -f "$_tmp"
printf '%s' "$_env_lines" >> "$_env"
}
# Interactive add/remove/rotate menu for an existing instance's sync
# accounts, offered from install_anki-sync-server's "already installed"
# menu. Every mutation restarts the container (`docker compose up -d`
# re-reads .env for the new/removed/rotated credentials) but never touches
# the port, Caddy config, or the image — the things CLAUDE.md's "update vs.
# fresh reinstall" convention says a non-destructive path must leave alone.
_anki_manage_accounts() {
local _dir="$1"
local ANKI_USERS=() ANKI_PASSWORDS=()
while true; do
_anki_load_accounts "$_dir"
echo ""
echo " Current sync accounts:"
local i
for i in "${!ANKI_USERS[@]}"; do
echo " $((i + 1))) ${ANKI_USERS[$i]}"
done
[ "${#ANKI_USERS[@]}" -eq 0 ] && echo " (none)"
echo ""
echo " a) Add an account"
echo " r) Remove an account"
echo " p) Rotate (reset) an account's password"
echo " 0) Done"
echo ""
local ACTION=""
prompt_text " Choice [a/r/p/0]:" "0" ACTION
case "$ACTION" in
a|A)
if [ "${#ANKI_USERS[@]}" -ge 8 ]; then
log_warning "That's plenty — stopping at 8 accounts."
continue
fi
local _u=""
prompt_text " New username:" "" _u
if [ -z "$_u" ]; then
log_warning "Name can't be empty."; continue
fi
ANKI_USERS+=("$_u")
ANKI_PASSWORDS+=("$(generate_password 24)")
_anki_rewrite_account_block "$_dir"
( cd "$_dir" && docker compose up -d ) \
&& log_success "Account '$_u' added — password: ${ANKI_PASSWORDS[-1]} (also saved in $_dir/.env)" \
|| log_warning "Container restart failed — check: docker compose -f $_dir/docker-compose.yml logs"
;;
r|R)
if [ "${#ANKI_USERS[@]}" -eq 0 ]; then
log_warning "No accounts to remove."; continue
fi
local _n=""
prompt_text " Remove which number?" "" _n
if ! [[ "$_n" =~ ^[0-9]+$ ]] || [ "$_n" -lt 1 ] || [ "$_n" -gt "${#ANKI_USERS[@]}" ]; then
log_warning "Invalid choice."; continue
fi
local _removed="${ANKI_USERS[$((_n - 1))]}"
unset 'ANKI_USERS[_n - 1]' 'ANKI_PASSWORDS[_n - 1]'
ANKI_USERS=("${ANKI_USERS[@]}")
ANKI_PASSWORDS=("${ANKI_PASSWORDS[@]}")
_anki_rewrite_account_block "$_dir"
( cd "$_dir" && docker compose up -d ) \
&& log_success "Account '$_removed' removed" \
|| log_warning "Container restart failed — check: docker compose -f $_dir/docker-compose.yml logs"
;;
p|P)
if [ "${#ANKI_USERS[@]}" -eq 0 ]; then
log_warning "No accounts yet."; continue
fi
local _n=""
prompt_text " Rotate password for which number?" "" _n
if ! [[ "$_n" =~ ^[0-9]+$ ]] || [ "$_n" -lt 1 ] || [ "$_n" -gt "${#ANKI_USERS[@]}" ]; then
log_warning "Invalid choice."; continue
fi
ANKI_PASSWORDS[$((_n - 1))]="$(generate_password 24)"
_anki_rewrite_account_block "$_dir"
( cd "$_dir" && docker compose up -d ) \
&& log_success "New password for '${ANKI_USERS[$((_n - 1))]}': ${ANKI_PASSWORDS[$((_n - 1))]} (also saved in $_dir/.env)" \
|| log_warning "Container restart failed — check: docker compose -f $_dir/docker-compose.yml logs"
;;
0)
break
;;
*)
log_warning "Unrecognized choice."
;;
esac
done
}
install_anki-sync-server() {
require_docker || return 1
log_info "Installing Anki Sync Server..."
# ── Instance selection ───────────────────────────────────────────────────
# First instance keeps the plain "anki-sync-server" name/paths/port exactly
# as before (zero behavior change for anyone with a single instance). Only
# asking to add a second one introduces suffixed naming — same pattern as
# services/ntfy.sh and services/homebox.sh. A second instance is a real
# use case here (e.g. a second household wanting fully separate data on
# the same box) even though one instance already supports multiple
# independent accounts via SYNC_USER1/SYNC_USER2/... — see CLAUDE.md's
# "Multi-instance services" section.
local ANKI_DIR="$DOCKER_DIR/anki-sync-server"
local INSTANCE_SUFFIX="" CONTAINER="anki-sync-server"
local WEB_PORT="8080"
if [ "$DRY_RUN" = true ]; then
echo "[DRY-RUN] Would offer to add a new, separate instance if one already exists"
echo "[DRY-RUN] Would create $ANKI_DIR(-<name>)"
echo "[DRY-RUN] Would prompt for one or more sync accounts and generate passwords"
echo "[DRY-RUN] Would write docker-compose.yml and .env"
echo "[DRY-RUN] Would auto-scan for a free host port"
return 0
fi
if [ -d "$ANKI_DIR" ]; then
echo ""
echo " Anki Sync Server is already installed at $ANKI_DIR."
echo " 1) Manage sync accounts (add / remove / rotate a password — doesn't"
echo " touch the port, Caddy, or the image)"
echo " 2) Manage that install (update image / full reinstall / cancel)"
echo " 3) Add a NEW, separate Anki Sync Server instance alongside it (its"
echo " own data and port — full isolation)"
echo ""
local _TOP_CHOICE=""
prompt_text " Choice [1/2/3]:" "2" _TOP_CHOICE
if [ "$_TOP_CHOICE" = "1" ]; then
_anki_manage_accounts "$ANKI_DIR"
return 0
elif [ "$_TOP_CHOICE" = "3" ]; then
local _suffix=""
while true; do
prompt_text " Short name for the new instance (letters/numbers/hyphens, e.g. 'family'):" "" _suffix
_suffix="$(echo "$_suffix" | tr -cs 'a-zA-Z0-9-' '-' | sed 's/^-*//;s/-*$//')"
if [ -z "$_suffix" ]; then
log_warning "Name can't be empty."; continue
fi
if [ -d "$DOCKER_DIR/anki-sync-server-$_suffix" ]; then
log_warning "anki-sync-server-$_suffix already exists — pick another name."; continue
fi
break
done
INSTANCE_SUFFIX="$_suffix"
ANKI_DIR="$DOCKER_DIR/anki-sync-server-$_suffix"
CONTAINER="anki-sync-server-$_suffix"
log_info "New instance: $ANKI_DIR"
else
# "Manage that install" on THIS instance — the banner above promises
# update/fresh/cancel, so actually offer it instead of falling straight
# through into the same unconditional-overwrite flow as a new install.
if [[ -f "$ANKI_DIR/docker-compose.yml" ]]; then
local MODE=""
prompt_reinstall_mode MODE
case "$MODE" in
update)
log_info "Refreshing the Anki Sync Server image only — existing accounts, port, and Caddy setup are left as-is."
( cd "$ANKI_DIR" && docker compose pull && docker compose up -d ) \
&& log_success "Anki Sync Server image refreshed" \
|| log_warning "Refresh failed — check: docker compose -f $ANKI_DIR/docker-compose.yml logs"
return 0
;;
cancel)
log_info "Leaving the existing install as-is."
return 0
;;
fresh) ;; # fall through to the full install flow below
esac
fi
fi
fi
# Scan for a free port unconditionally — not just when adding an explicit
# additional instance. A plain first install can just as easily collide
# with an unrelated service that already claimed this default port — see
# CLAUDE.md's "Port collision avoidance" section.
find_free_port WEB_PORT "$WEB_PORT"
# ── Sync accounts ─────────────────────────────────────────────────────────
# The official sync server has no signup flow of its own — accounts are
# fixed credentials baked in as SYNC_USER1, SYNC_USER2, ... at container
# start, one per line in .env. Ask for at least one now (each Anki client
# — desktop, AnkiDroid, AnkiMobile — logs in with one of these) and offer
# to add more for other people sharing this box, since a single instance
# already keeps each account's collection completely separate.
local ANKI_USERS=() ANKI_PASSWORDS=()
local _u=""
prompt_text " Username for your Anki sync account:" "$ACTUAL_USER" _u
ANKI_USERS+=("$_u")
ANKI_PASSWORDS+=("$(generate_password 24)")
while true; do
local _more=""
prompt_yn " Add another Anki sync account (e.g. for a family member)? (y/n):" "n" _more
[[ "$_more" =~ ^[Yy]$ ]] || break
prompt_text " Username for the additional account:" "" _u
if [ -z "$_u" ]; then
log_warning "Name can't be empty."; continue
fi
ANKI_USERS+=("$_u")
ANKI_PASSWORDS+=("$(generate_password 24)")
if [ "${#ANKI_USERS[@]}" -ge 8 ]; then
log_warning "That's plenty — stopping at 8 accounts."
break
fi
done
mkdir -p "$ANKI_DIR/data"
ensure_docker_dir_ownership "$ANKI_DIR"
cd "$ANKI_DIR" || return 1
# Mirrors configure_caddy_for_service's own mode resolution (lib/common.sh):
# explicit CADDY_MODE from the site config wins, then a local ~/docker/caddy,
# then the legacy CADDY_REMOTE_HOST var. Only "local" joins caddy_net — a
# remote Caddy box can't resolve container names on this host's bridge
# network anyway; it reaches this service via the host's published port.
local _CADDY_MODE="${CADDY_MODE:-none}"
[ "$_CADDY_MODE" = "none" ] && [ -d "$DOCKER_DIR/caddy" ] && _CADDY_MODE="local"
[ "$_CADDY_MODE" = "none" ] && [ -n "${CADDY_REMOTE_HOST:-}" ] && _CADDY_MODE="remote"
local _CADDY_NET_BLOCK=""
local _CADDY_NET_SECTION=""
if [ "$_CADDY_MODE" = "local" ]; then
_CADDY_NET_BLOCK=" networks:
- caddy_net
"
_CADDY_NET_SECTION="
networks:
caddy_net:
external: true
name: ${SITE_CADDY_NET:-caddy_net}
"
fi
# Build the SYNC_USERn=... lines for docker-compose.yml (compose-time
# interpolation of ${ANKI_SYNC_USERn}/${ANKI_SYNC_PASSWORDn} from .env —
# same \${VAR} pattern services/homebox.sh uses for its own .env values)
# and the matching ANKI_SYNC_USERn/ANKI_SYNC_PASSWORDn lines for .env.
local _COMPOSE_USER_LINES="" _ENV_USER_LINES="" i idx
for i in "${!ANKI_USERS[@]}"; do
idx=$((i + 1))
_COMPOSE_USER_LINES+=" - SYNC_USER${idx}=\${ANKI_SYNC_USER${idx}}:\${ANKI_SYNC_PASSWORD${idx}}
"
_ENV_USER_LINES+="ANKI_SYNC_USER${idx}=${ANKI_USERS[$i]}
ANKI_SYNC_PASSWORD${idx}=${ANKI_PASSWORDS[$i]}
"
done
backup_if_exists docker-compose.yml
cat > docker-compose.yml << ANKI_COMPOSE
name: $CONTAINER
services:
anki-sync-server:
image: afrima/anki-sync-server:latest
container_name: $CONTAINER
hostname: $CONTAINER
restart: unless-stopped
environment:
- SYNC_HOST=0.0.0.0
- SYNC_PORT=8080
- SYNC_BASE=/data
${_COMPOSE_USER_LINES} volumes:
- ./data:/data
ports:
- "${WEB_PORT}:8080"
${_CADDY_NET_BLOCK}${_CADDY_NET_SECTION}
ANKI_COMPOSE
backup_if_exists .env
cat > .env << ANKI_ENV
TZ=${SITE_TZ:-$(cat /etc/timezone 2>/dev/null || echo UTC)}
CADDY_NET=$SITE_CADDY_NET
# One username/password pair per Anki sync account (SYNC_USER1, SYNC_USER2,
# ... in docker-compose.yml). Enter these exact values as the account on
# each Anki client (Preferences/Settings → self-hosted sync server). To add,
# remove, or reset one of these later, re-run this installer against the
# existing install and pick "Manage sync accounts" — don't hand-edit these
# lines, the matching docker-compose.yml lines have to change in lockstep.
${_ENV_USER_LINES}
ANKI_ENV
chmod 600 .env
chown -R "$ACTUAL_USER:$ACTUAL_USER" "$ANKI_DIR"
echo ""
log_success "Anki Sync Server${INSTANCE_SUFFIX:+ ($INSTANCE_SUFFIX)} configured at $ANKI_DIR (port $WEB_PORT)"
echo ""
echo " Sync accounts (also saved in $ANKI_DIR/.env):"
for i in "${!ANKI_USERS[@]}"; do
echo " ${ANKI_USERS[$i]} / ${ANKI_PASSWORDS[$i]}"
done
echo ""
# No Authelia gate here, unlike most other web-facing services in this
# repo: this is a raw HTTP sync API that the Anki client itself talks to
# (not a browser session), so a forward_auth login portal in front of it
# would just break every sync request instead of protecting anything.
# SYNC_USER1/SYNC_USER2/... above is this service's own auth boundary —
# same reasoning as the has-built-in-auth services in CLAUDE.md, just
# with no web UI to additionally gate.
configure_caddy_for_service "Anki Sync Server${INSTANCE_SUFFIX:+ ($INSTANCE_SUFFIX)}" "${CONTAINER}:8080" "anki${INSTANCE_SUFFIX:+-$INSTANCE_SUFFIX}"
local START=""
prompt_yn "Start Anki Sync Server${INSTANCE_SUFFIX:+ ($INSTANCE_SUFFIX)} now? (y/n):" "y" START
if [ "$START" = "y" ] || [ "$START" = "Y" ]; then
docker compose up -d \
&& log_success "Anki Sync Server started" \
|| log_warning "Start failed — check: docker compose logs"
fi
write_readme "$ANKI_DIR" << MD
# Anki Sync Server${INSTANCE_SUFFIX:+ — $INSTANCE_SUFFIX}
Self-hosted sync server for the [Anki](https://apps.ankiweb.net/) flashcard
app — syncs your collection across devices without going through AnkiWeb.
Anki's own spaced-repetition scheduler (FSRS) gives failed cards more
repetition and correctly-recalled cards longer gaps automatically; nothing
here changes that, it's purely the sync backend.
$( [ -n "$INSTANCE_SUFFIX" ] && echo "
This is a separate, fully isolated instance (own data directory, own
accounts, own port) — not shared collections with another Anki Sync Server
instance.")
## Access
- Sync URL: $( [ -n "${CADDY_SERVICE_CONFIGURED:-}" ] && [ "$CADDY_SERVICE_CONFIGURED" = "true" ] && echo "https://${CADDY_SERVICE_DOMAIN}/" || echo "http://localhost:${WEB_PORT}/" )
- Accounts (username / password):
$(for i in "${!ANKI_USERS[@]}"; do echo " - ${ANKI_USERS[$i]} / ${ANKI_PASSWORDS[$i]}"; done)
Enter the Sync URL and one of the above accounts on each Anki client — see
the client setup section below for exactly where.
## Data
- Collections: \`$ANKI_DIR/data\`
- Credentials: \`$ANKI_DIR/.env\` (readable by $ACTUAL_USER only)
## Manage
\`\`\`bash
cd $ANKI_DIR
docker compose up -d
docker compose down
docker compose logs -f
docker compose pull && docker compose up -d
\`\`\`
To add, remove, or reset the password of a sync account later, re-run the
installer against this install and pick **"Manage sync accounts"** —
don't hand-edit \`.env\`, the matching lines in \`docker-compose.yml\` have
to change alongside it:
\`\`\`bash
sudo ./setup.sh anki-sync-server
\`\`\`
MD
log_info "Full client setup + Quizlet import walkthrough written to $ANKI_DIR/README.md"
}
# ── Standalone execution ───────────────────────────────────────────────────
if [[ "${_RUN_STANDALONE:-0}" == "1" ]]; then
install_anki-sync-server
fi