net: No outgoing block-relay-only connections #21730

hebasto@odroid-hc1:~$ bitcoin-cli -netinfo 1
Bitcoin Core v0.21.1rc1 - 70016/Satoshi:0.21.1/

Peer connections sorted by direction and min ping
<-> relay   net  mping   ping send recv  txn  blk  age  id 
 in  full  ipv4                  0    1              0 120 
 in  full  ipv4     37     37   12   24              5  65 
 in  full  ipv4     44     44    8    8              6  59 
 in  full  ipv4     46     48   12   72              5  70 
 in  full  ipv4     48     49   12    1    1         7  42 
 in block  ipv4     55     55    3    0              0 128 
 in  full  ipv4     57     57    4   35              1 109 
 in  full  ipv4     61     61   11    3    0         7  37 
 in  full  ipv4     68     68   11   35              8  16 
 in  full  ipv4     72     72    4   34              8  17 
 in block  ipv4    234    234   10   10              0 126 
 in  full  ipv4    247    247   12   73              5  69 
 in  full  ipv4    253    308    2   47              8   8 
 in  full  ipv4    253    253   11   81              1 116 
 in block  ipv4    269    269    0   15              0 124 
 in block  ipv4    300    300   11   10              0 125 
 in  full  ipv4    300    432   11   44              8  10 
 in  full  ipv4    381    698    5    0    0         3  94 
 in  full  ipv4    381    384    2    2              2 105 
 in  full  ipv4    493    493   12   36              4  76 
 in  full  ipv4    802    802    2  131              2 103 
 in  full  ipv4   7888   7888    8   75              1 114 
 in  full  ipv4  14144  79875    4    4              3  83 
out  full  ipv4    432    600    3    2    0    3    8  27 
out  full onion    455    648    1    2    0         8   5 
out  full onion    475    495    0    2    0         3  93 
out  full  ipv4    492    864    0    1    0         3  92 
out  full  ipv4    541    614    2    2    0         6  50 
out  full  ipv4    587    587    1    0    0         7  46 
out  full onion    652    826    5    4    0         8   6 
out  full  ipv4    656    720    1    3    0         6  49 
out  full onion    658    658    1   15    0         1 107 
out  full onion    679    679    0    0    0         8  20 
                    ms     ms  sec  sec  min  min  min

        ipv4    ipv6   onion   total  block-relay
in        23       0       0      23       4
out        5       0       5      10       0
total     28       0       5      33       4

Local addresses
95.164.65.194                                                      port   8333    score     76
ejxefzf5fpst4mg2rib7grksvscl7p6fvjp6agzgfc2yglxnjtxc3aid.onion     port   8333    score      4

The excerpt from the debug.log with configuration options:

2021-04-19T14:43:01Z Bitcoin Core version v0.21.1rc1 (release build)
2021-04-19T14:43:01Z InitParameterInteraction: parameter interaction: -proxy set -> setting -upnp=0
2021-04-19T14:43:01Z InitParameterInteraction: parameter interaction: -proxy set -> setting -discover=0
2021-04-19T14:43:01Z Assuming ancestors of block 0000000000000000000b9d2ec5a352ecba0592946514a92f14319dc2b367fc72 have valid signatures.
2021-04-19T14:43:01Z Setting nMinimumChainWork=00000000000000000000000000000000000000001533efd8d716a517fe2c5008
2021-04-19T14:43:01Z Using the 'standard' SHA256 implementation
2021-04-19T14:43:01Z Wallet disabled!
2021-04-19T14:43:01Z Default data directory /home/core/.bitcoin
2021-04-19T14:43:01Z Using data directory /var/lib/bitcoind
2021-04-19T14:43:01Z Config file: /etc/bitcoin/bitcoin.conf
2021-04-19T14:43:01Z Config file arg: addnode="rp7k2go3s5lyj3fnj6zn62ktarlrsft2ohlsxkyd7v3e3idqyptvread.onion"
2021-04-19T14:43:01Z Config file arg: addnode="mwmfluek4au6mxxpw6fy7sjhkm65bdfc7izc7lpz3trewfdghyrzsbid.onion"
2021-04-19T14:43:01Z Config file arg: dbcache="4"
2021-04-19T14:43:01Z Config file arg: disablewallet="1"
2021-04-19T14:43:01Z Config file arg: externalip="95.164.65.194"
2021-04-19T14:43:01Z Config file arg: externalip="ejxefzf5fpst4mg2rib7grksvscl7p6fvjp6agzgfc2yglxnjtxc3aid.onion"
2021-04-19T14:43:01Z Config file arg: listen="1"
2021-04-19T14:43:01Z Config file arg: listenonion="0"
2021-04-19T14:43:01Z Config file arg: logthreadnames="1"
2021-04-19T14:43:01Z Config file arg: par="4"
2021-04-19T14:43:01Z Config file arg: proxy="127.0.0.1:9050"
2021-04-19T14:43:01Z Config file arg: rpcauth=****
2021-04-19T14:43:01Z Config file arg: rpcthreads="2"
2021-04-19T14:43:01Z Config file arg: server="1"
2021-04-19T14:43:01Z Config file arg: txindex="1"
2021-04-19T14:43:01Z Command-line arg: blocksdir="/mnt/hdd"
2021-04-19T14:43:01Z Command-line arg: conf="/etc/bitcoin/bitcoin.conf"
2021-04-19T14:43:01Z Command-line arg: daemon=""
2021-04-19T14:43:01Z Command-line arg: datadir="/var/lib/bitcoind"
2021-04-19T14:43:01Z Command-line arg: debuglogfile="/mnt/hdd/debug.log"
2021-04-19T14:43:01Z Command-line arg: pid="/run/bitcoind/bitcoind.pid"
...